Answer:
Solution,
[tex] - 4 {x}^{2} + 3x - 5 - ( - 7x - 9)[/tex]
When there is a (-) in front of an expression in parentheses, change the sign of each term in the expression
[tex] - 4 {x}^{2} + 3x - 5 + 7x + 9[/tex]
Collect like terms
[tex] - 4 {x}^{2} + 3x + 7x - 5 + 9[/tex]
[tex] - 4 {x}^{2} + 10x - 5 + 9[/tex]
Calculate the sum
[tex] - 4 {x}^{2} + 10x + 4[/tex]
Factor out -2 from the expression
[tex] - 2(2 {x}^{2} - 5x - 2)[/tex]
Hope this helps ...
Good luck on your assignment...
