What is (-7x^2-6x+9)+(-3x^2-x+7) ?

The solution to (-7x^2-6x+9)+(-3x^2-x+7) is -10x^2-7x+16

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simplify (-7x^2-6x+9)+(-3x^2-x+7)

simplify

(- 7 x^{2} - 6 x + 9) + (- 3 x^{2} - x + 7)

- 10 x^{2} - 7 x + 16

Solution steps

(- 7 x^{2} - 6 x + 9) + (- 3 x^{2} - x + 7)

Simplify

(- 7 x^{2} - 6 x + 9) + (- 3 x^{2} - x + 7) : - 7 x^{2} - 6 x + 9 - 3 x^{2} - x + 7

= - 7 x^{2} - 6 x + 9 - 3 x^{2} - x + 7

Group like terms

= - 7 x^{2} - 3 x^{2} - 6 x - x + 9 + 7

Add similar elements:

- 7 x^{2} - 3 x^{2} = - 10 x^{2}

= - 10 x^{2} - 6 x - x + 9 + 7

Add similar elements:

- 6 x - x = - 7 x

= - 10 x^{2} - 7 x + 9 + 7

Add the numbers:

9 + 7 = 16

= - 10 x^{2} - 7 x + 16

10 \frac{3}{4}

\frac{x ^{3} + 1}{x ^{2} - 1}

0.24

\frac{2}{2}

\frac{2}{3} + \frac{4}{7}

What is (-7x^2-6x+9)+(-3x^2-x+7) ?
The solution to (-7x^2-6x+9)+(-3x^2-x+7) is -10x^2-7x+16