What is expand ,(8x^2-8)+(-2x^2-9x) ?

The solution to expand ,(8x^2-8)+(-2x^2-9x) is 6x^2-9x-8

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expand ,(8x^2-8)+(-2x^2-9x)

expand

(8 x^{2} - 8) + (- 2 x^{2} - 9 x)

6 x^{2} - 9 x - 8

Solution steps

(8 x^{2} - 8) + (- 2 x^{2} - 9 x)

Remove parentheses:

(a) = a

= 8 x^{2} - 8 - 2 x^{2} - 9 x

Group like terms

= 8 x^{2} - 2 x^{2} - 9 x - 8

Add similar elements:

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

= 6 x^{2} - 9 x - 8

\frac{( sin ^{2} ( t ) )}{( 1 - cos ( t ) ) ^{2}}

(e^{- t} + 1)^{2}

(x + 1) (x - x)

3 (2 + 3)

x \cdot (1 + e^{- x})

What is expand ,(8x^2-8)+(-2x^2-9x) ?
The solution to expand ,(8x^2-8)+(-2x^2-9x) is 6x^2-9x-8