(-4c-6d)(-4c+6d)

(a)  

2(2x+6)(2x-6)

(a)  

(2x-2)(3x+4)

(a)  

(2x+4y)²

(a)  

(2c-2d)(2d+2c)

(a)  

(2c-5d)(5c+3d)

(a)  

(3x+2y)²

(a)  

(-4x-5y)(-4x+5y)

(a)  

(5a-2)²

(a)  

2(4a+3b)(4a-3b)

(a)  

(2a-6)(6+2a)

(a)  

(2x-6y)(6y+2x)

(a)  

(4x-6y)(4x+6y)

(a)  

2(4a+4b)(4a-4b)

(a)  

(2a+2b)²

(a)  

(5x-2y)²

(a)  

(4a+3b)²

(a)  

(x+4y)²

(a)  

(3a-6b)(6b+3a)

(a)  

(x-4y)(4y+x)

(a)  

(a+3)²

(a)  

(3a+4)(3a-4)

(a)  

(5x-4y)(4y+5x)

(a)  

(-5a-6b)(-5a+6b)

(a)  

(2x-5y)(3x+3y)

(a)  

(3a+3)²

(a)  

(x-5y)(x+5y)

(a)  

(2x-6)(6+2x)

(a)  

(-4a-2)(-4a+2)

(a)  

(3a-5)(5+3a)

(a)  

(x-6y)²

(a)  

(5a-4b)(a+3b)

(a)  

(6c-6d)(2c+6d)

(a)  

(3x-2y)(2y+3x)

(a)  

(3c-2d)²

(a)  

(3a-5b)²

(a)  

(2c-6d)(c+4d)

(a)  

(3a+2)²

(a)  

4(x+4y)(x-4y)

(a)  

(4c+5d)²

(a)  

(5a-6b)(6b+5a)

(a)  

(5a-2b)(5a+2b)

(a)  

(x+4)²

(a)  

(4x-3y)(3y+4x)

(a)  

(3a-3)(3a+3)

(a)  

4(2a+6b)(2a-6b)

(a)  

(2a-4b)(2a+4b)

(a)  

(x+3y)(x-3y)

(a)  

(2a-6)²

(a)  

(3a-3)(3+3a)

(a)  

2(x+5)(x-5)

(a)  

(4a-5b)²

(a)  

(4a+6b)(4a-6b)

(a)  

(3x+6)²

(a)  

(3x-2y)(3x+2y)

(a)  

(3x-4y)(2x+4y)

(a)  

(-5x-3y)(-5x+3y)

(a)  

(-x-3)(-x+3)

(a)  

(5x+2)²

(a)  

(4x-6y)(6y+4x)

(a)  

(5a+3b)²

(a)  

(4a+6)²

(a)  

(3c+5d)²

(a)  

(5a-6b)(3a+6b)

(a)  

(-5a-4)(-5a+4)

(a)  

(2a-3)(2a+3)

(a)  

(-3a-2)(-3a+2)

(a)  

(5x-4)²

(a)  

(2x+5)²

(a)  

(4x-5y)(5y+4x)

(a)  

(5a-2)(2+5a)

(a)  

(4a-3b)(5a+2b)

(a)  

(4x-2)(4x+5)

(a)  

(3c-4d)(3c+2d)

(a)  

(5a+3)²

(a)  

(4x-4y)(4y+4x)

(a)  

(3c-4d)(4d+3c)

(a)  

4(x+6)(x-6)

(a)  

(2c-3d)²

(a)  

(4a-2b)²

(a)  

(2c+6d)²

(a)  

(-4x-2y)(-4x+2y)

(a)  

(3c-4d)(4d+3c)

(a)  

(4a-5)(a+4)

(a)  

(x-3y)(x+3y)

(a)  

(3c-3d)²

(a)  

(5x+5)²

(a)  

(6x-6)(5x+2)

(a)  

(3a+5b)²

(a)  

(5x-6y)(5x+5y)

(a)  

(5x-3y)²

(a)  

(x+4y)²

(a)  

4(4a+3b)(4a-3b)

(a)  

(5c+3d)(5c-3d)

(a)  

(-2a-4b)(-2a+4b)

(a)  

(4a-5)(5a+4)

(a)  

(3x-3)(4x+6)

(a)  

2(2a+6)(2a-6)

(a)  

(5a+4b)²

(a)  

(3x-2)(3x+2)

(a)  

(x-6y)(6y+x)

(a)  

(5x-4)²

(a)  

(3c-6d)(6d+3c)

(a)  

(-3c-3d)(-3c+3d)

(a)  

4(3c+4d)(3c-4d)

(a)  

(2a+4)²

(a)  

(c-6d)²

(a)  

(5c-6d)²

(a)  

4(x+2y)(x-2y)

(a)  

(2a+2b)²

(a)  

(2x-5)²

(a)  

(2x-4y)(4y+2x)

(a)  

(4a+6b)²

(a)  

(a-4b)(4b+a)

(a)  

(-2x-5y)(-2x+5y)

(a)  

(a-6)(6+a)

(a)  

(-x-2)(-x+2)

(a)  

(-x-4y)(-x+4y)

(a)  

(2x-3)(5x+4)

(a)  

(2x-4y)²

(a)  

(2c-3d)(5c+6d)

(a)  

(4a-5b)(4a+5b)

(a)  

(2a+4)²

(a)  

(5x-5y)(x+4y)

(a)  

(6c-4d)(2c+5d)

(a)  

(3c-2d)(4c+4d)

(a)  

(4a+3)²

(a)  

(2a+5)²

(a)  

(-4a-5)(-4a+5)

(a)  

4(4a+2)(4a-2)

(a)  

(a-4b)²

(a)  

(5a-2)(2+5a)

(a)  

(4x-3)²

(a)  

(4c-5d)(5d+4c)

(a)  

(-x-3)(-x+3)

(a)  

4(4c+2d)(4c-2d)

(a)  

(2a-6b)(2a+6b)

(a)  

(6x-5)(2x+3)

(a)  

(3a+6b)²

(a)  

4(5a+4)(5a-4)

(a)  

(2a-6b)(6b+2a)

(a)  

(-2a-5)(-2a+5)

(a)  

3(4x+6)(4x-6)

(a)  

(5a-3)(3+5a)

(a)  

(a-3)(3+a)

(a)  

(-5c-5d)(-5c+5d)

(a)  

(3a-6b)(5a+4b)

(a)  

(-5x-6)(-5x+6)

(a)  

(2a-2b)(2a+2b)

(a)  

(-2x-3)(-2x+3)

(a)  

(5c-6d)(5c+5d)

(a)  

3(5a+4b)(5a-4b)

(a)  

(5x+4)(5x-4)

(a)  

(3a-4b)²

(a)  

(c-4d)(c+4d)

(a)  

4(2a+3b)(2a-3b)

(a)  

(3a-6b)(3a+6b)

(a)  

(-3x-3y)(-3x+3y)

(a)  

4(4a+2b)(4a-2b)

(a)  

(3a+4b)²

(a)  

(5a-2b)²

(a)  

(c+5d)²

(a)  

(3x-6y)(3x+6y)

(a)  

(5a+5)(5a-5)

(a)  

(5a-2)(2+5a)

(a)  

(-3c-3d)(-3c+3d)

(a)  

(a+6b)²

(a)  

(5a-2)(5a+2)

(a)  

(-2x-4)(-2x+4)

(a)  

(4x-3)²

(a)  

(5x+2)²

(a)  

(5x-3y)²

(a)  

(5x-3y)(5x+3y)

(a)  

(-c-4d)(-c+4d)

(a)  

(2a-3b)(4a+3b)

(a)  

4(a+3)(a-3)

(a)  

(2a-4)(4+2a)

(a)  

(4x-2)²

(a)  

(5x-3)(5x+3)

(a)  

(3a-3b)(2a+6b)

(a)  

(x-2)(2+x)

(a)  

(4a-4b)(4b+4a)

(a)  

(-3c-6d)(-3c+6d)

(a)  

2(c+3d)(c-3d)

(a)  

(a-4b)²

(a)  

(3a-5b)²

(a)  

(5x-2)(2x+5)

(a)  

4(4c+2d)(4c-2d)

(a)  

(3a-6)(3a+6)

(a)  

(2c-3d)(3d+2c)

(a)  

(3x-5y)(2x+3y)

(a)  

(3x-5)²

(a)  

(x-6)(x+6)

(a)  

(6a-6b)(2a+5b)

(a)  

(2x+3)²

(a)  

(4a-6b)(4a+6b)

(a)  

(4a+2b)²

(a)  

(4a-4b)(4b+4a)

(a)  

(3c-3d)(c+5d)

(a)  

(4x-3)(3+4x)

(a)  

(-4c-5d)(-4c+5d)

(a)  

(5c-2d)(5c+2d)

(a)  

4(4a+2b)(4a-2b)

(a)  

(-5a-5b)(-5a+5b)

(a)  

(-a-2b)(-a+2b)

(a)  

(6a-4b)(4a+2b)

(a)  

(4c-3d)²

(a)  

(a-3)(3+a)

(a)  

(-x-4)(-x+4)

(a)  

(x-5y)(5y+x)

(a)  

4(x+2y)(x-2y)

(a)  

(5a-4)(5a+4)

(a)  

(c-6d)(c+6d)

(a)  

(-5c-5d)(-5c+5d)

(a)  

(4a+5b)(4a-5b)

(a)  

(x-6y)(x+6y)

(a)  

3(a+6)(a-6)

(a)  

(-3x-2)(-3x+2)

(a)  

(2x-2)(2x+2)

(a)  

(5x+3y)²

(a)  

(3a-4b)(4b+3a)

(a)  

(2a-5)²

(a)  

(4c-6d)(6d+4c)

(a)  

(4c-2d)(4c+2d)

(a)  

(5a-6)(a+3)

(a)  

(a-4)²

(a)  

(4a+4)²

(a)  

(x-6)(6+x)

(a)  

(-3a-6)(-3a+6)

(a)  

(a-4b)(4b+a)

(a)  

(3c-2d)(4c+5d)

(a)  

(5c-6d)(6d+5c)

(a)  

(3x-5y)(5y+3x)

(a)  

(2x-4y)(4y+2x)

(a)  

(2c-2d)(2c+4d)

(a)  

(4x-6)(6+4x)

(a)  

(2x-5)(2x+5)

(a)  

(5x-2)(2+5x)

(a)  

(5a-6b)(5a+6b)

(a)  

(6c-2d)(4c+4d)

(a)  

(4x-4y)(4y+4x)

(a)  

(x-3)(x+3)

(a)  

(3c+3d)²

(a)  

(4c-2d)(2d+4c)

(a)  

(4x-3)²

(a)  

(3x-3y)(3y+3x)

(a)  

(3x-5y)(4x+2y)

(a)  

(a-5)(5+a)

(a)  

(3x+4)²

(a)  

(-3a-5)(-3a+5)

(a)