Answer:
A) 3x² - 7x - 3
Explanation:
- First remove the parenthesis by multiplying the factors
- Then, combine the like terms and combine the constants.
5x² - 3(1 - x) - 2x(x +5) = 5x² - 3*1 + 3*x - 2x *x - 2x *5
= 5x² - 3 + 3x - 2x² - 10x
= 5x² - 2x² + 3x - 10x -3
Combine like terms,
= 3x² - 7x - 3