What is (-6x^2-4)+(9x^2-7x) ?

The solution to (-6x^2-4)+(9x^2-7x) is 3x^2-7x-4

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simplify (-6x^2-4)+(9x^2-7x)

simplify

(- 6 x^{2} - 4) + (9 x^{2} - 7 x)

3 x^{2} - 7 x - 4

Solution steps

(- 6 x^{2} - 4) + (9 x^{2} - 7 x)

Simplify

(- 6 x^{2} - 4) + (9 x^{2} - 7 x) : - 6 x^{2} - 4 + 9 x^{2} - 7 x

= - 6 x^{2} - 4 + 9 x^{2} - 7 x

Group like terms

= - 6 x^{2} + 9 x^{2} - 7 x - 4

Add similar elements:

- 6 x^{2} + 9 x^{2} = 3 x^{2}

= 3 x^{2} - 7 x - 4

3^{- 3} \cdot 3^{- 3}

(3 d + 3) + (3 d + 3)

(8 x + 1) (x - 7)

\frac{1}{4} + \frac{1}{x}

cos (x) [cos (2 x) - 2 sin^{2} (x)]