Idont understand this question, me

2(x²+7x-7)

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Step-by-step explanation:

7x²+4x-9-5x²=10x-5

2x²+14x-14

2(x²+7x-7)

-2x^2 + 6x + 4

Step-by-step explanation:

We are subtracting  whole of 7x^2 + 4x - 9) so we put it into parentheses. So we have:-

5x^2 + 10x - 5 - (7x^2 + 4x - 9)

First distribute the negative over the parentheses

= 5x^2 + 10x - 5 - 7x^2 - 4x + 9

Now bring like terms together and simplify:-

= 5x^2 - 7x^2 + 10x - 4x - 5 + 9

= -2x^2 + 6x + 4    (answer)

step-by-step explanation:

3024 rhe base is what up in worry about