Question

1. (–10x3 + 30x – 20) ÷ (–5x + 5) (1 point)2x2 – 2x + 4

–2x2 – 2x – 4
–2x2 + 2x + 4
2x2 + 2x – 4
2. The width w of a rectangular swimming pool is x + 4. The area A of the pool is 2x3 – 29x + 12. What is an expression for the length of the pool? (1 point)2x2 + 8x +3
2x2 – 8x – 3
2x2 – 8x + 3
2x2 + 8x – 3

Answer 1

1.
-10x^3+30x-20: (-5x+5) =2x^2+2x-4
10x^3-10x^2
_________
-10x^2+30x-20
10x^2-10x
_________
20x-20
-20x+20

The answer to your question is D.

2.
2x^3-29x+12 : x+4 = 2x^2-8x+3
-2x^3-8x^2
________
-8x^2-29x+12
8x^2+32x
________
3x+12
-3x-12

The answer to your question is C.

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