Question

Subtract –7x- 9 from - 4x^2 + 3x - 5

Answer 1

-7x-9-4x^2 + 3x -5

-4x-9-4x^2 - 5

-4x-14-4x^2

Answer: -2(2x+7+2x^2)

Answer 2

Answer:

$- 2(2 {x}^{2} - 5x - 2)$

Solution,

$- 4 {x}^{2} + 3x - 5 - ( - 7x - 9)$

When there is a (-) in front of an expression in parentheses, change the sign of each term in the expression

$- 4 {x}^{2} + 3x - 5 + 7x + 9$

Collect like terms

$- 4 {x}^{2} + 3x + 7x - 5 + 9$

$- 4 {x}^{2} + 10x - 5 + 9$

Calculate the sum

$- 4 {x}^{2} + 10x + 4$

Factor out -2 from the expression

$- 2(2 {x}^{2} - 5x - 2)$

Hope this helps ...

Good luck on your assignment...