Question

Simplify the following polynomials: (Use the ^ symbol to represent exponents)

a) (-2x2 -6x + 7) - (3x3 - 5x + 14)

b) (2x - 7) (3x + 5)

c) (10x2 -3x - 18) ÷ (5x +6)

Answer 1

Important: Please express exponents properly: -2x^2 Correct
-2x2 Not correct

Rewrite (-2x2 -6x + 7) - (3x3 - 5x + 14)

as

- 2x^2 -6x + 7
- (3x^3 - 5x + 14)
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Even better, write each power of x in its own column:

- 2x^2 -6x + 7 - 2x^2 -6x + 7
- 3x^3 + 5x -14 - 3x^3 + 5x -14
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-3x^3 - 2X^2 - X - 7 (ANSWER)