What is 7x^2+12x-x^2-40x ?

The solution to 7x^2+12x-x^2-40x is 6x^2-28x

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simplify 7x^2+12x-x^2-40x

simplify

7 x^{2} + 12 x - x^{2} - 40 x

6 x^{2} - 28 x

Solution steps

7 x^{2} + 12 x - x^{2} - 40 x

Group like terms

= 7 x^{2} - x^{2} + 12 x - 40 x

Add similar elements:

7 x^{2} - x^{2} = 6 x^{2}

= 6 x^{2} + 12 x - 40 x

Add similar elements:

12 x - 40 x = - 28 x

= 6 x^{2} - 28 x

16 n^{2}

\frac{63}{64}

(2 y - 2) (2 y + 2)

\frac{8 k ^{3} + 18 k ^{2} - 2 k}{- 2 k}

\frac{5}{5 a ^{2} b}