Question

Simplify the expression: 5x²−3x−4−(2x²+4x−1)

a) 3x²−7x−3
b) 3x²+x−3
c) 3x²−7x+3
d) 3x²+x+3

Answer 1

To simplify the expression 5x²−3x−4−(2x²+4x−1), distribute the negative sign to every term in the parentheses. Then, combine like terms to obtain the simplified expression 3x²−7x−3.

Step-by-step explanation:

To simplify the expression:

5x²−3x−4−(2x²+4x−1)

First, distribute the negative sign to every term in the parentheses:

5x²−3x−4−2x²−4x+1

Combine like terms:

(5x²−2x²) + (-3x-4x) + (-4+1)

3x² - 7x - 3

Therefore, the simplified expression is 3x²−7x−3.