Factor Completely 3rd and 4th Degree polynomials

Completely factor: x⁴+9x²-10

• (x+1)(x-1)(x²+10)

• (x+1)(x-1)(x+3)(x-3)

• (x-1)(x+10)

• x²(x-1)(x+10)

Completely factor: x⁴-13x²+36

• (x+2)(x-2)(x²+9)

• (x+2)(x-2)(x+3)(x-3)

• (x-4)(x+9)

• x²(x-4)(x+9)

7r³-8r²+42r-48

• (r²+6)(7r+8)
• (r²+6)(7r-8)
• (r²+6)(r²+8)
• (r²+6)(7r+6)

20x³-25x²+4x-5

• (5x²-5)(4x+1)
• 5(x²-1)(4x+5)
• (5x²+1)(4x-5)
• (5x²+1)(4x-1)

x³-5x²+5x-25

• (x²-5)(x-5)
• (x²+5)(x-5)
• (x²+5)(x+5)
• (x²-1)(x-25)

• (x + 6)(x - 8)

• (x -4)(x+4)(x - 3)