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Subtract the sum of $2x - x^2 + 5$ and $-4x - 3 + 7x^2$ from $5$.
To do:
We have to subtract the sum of $2x - x^2 + 5$ and $-4x - 3 + 7x^2$ from $5$.
Solution:
Sum of $2x - x^2 + 5$ and $-4x - 3 + 7x^2$ is,
$2x - x^2 + 5+(-4x - 3 + 7x^2)=2x - 4x- x^2 + 7x^2 + 5-3$
$=-2x+6x^2+2$
Subtracting $-2x+6x^2+2$ from $5$,
$5-(-2x+6x^2+2)=5+2x-6x^2-2$
$=-6x^2+2x+3$
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