Solve Quadratics

What is the complete factorization of 2x²+x-15?

• (x-5)(2x+3)

• (x-3)(2x+5)

• (x+3)(2x-5)

• (x+5)(2x-3)

What is the complete factorization of -x²+3x+28?

• (x-4)(x-7)

• -(x+4)(x+7)

• -(x-4)(x+7)

• -(x-7)(x+4)

What is the complete factorization of 6x²+9x-6?

• 3(2x-1)(x+2)

• 3(x-2)(2x+1)

• (3x+2)(2x-3)

• 3(x-2)(2x-1)

What is the complete factorization of 16x²-56x+49?

• (4x-7)(4x+7)

• (4x+7)²

• (4x-7)²

• 16(x-7)²

What is the complete factorization of 5x²-20?

• (5x-4)(x+5)

• 5(x+2)(x-2)

• 5(x+4)(x-4)

• 5(x-2)²

What is the positive solution of the equation x²=2x+35?

• 7

• 5

• 2

• 35

What is the positive solution of the equation 5x²+2x-16=0?

• 8/5

• 2

• 1

• 1.5

What are the solutions of the equation 36x²-12x+1=4?

• 4,8

• -1/6,1/6

• -1/2,1/6

• -1/6,1/2

What are the solutions of the equation 2x²+16x+28=0?

• -4±√30

• -4±√2

• 4±√2

• 4±√30

Which value completes the square for x²-3x?

• 9/4

• 3/2

• 9

• -9/4