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Orri · Answer 1 · 2021-05-26T22:26:00+0000

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...

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

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