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

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

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

simplify

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

3 x^{2} - 2 x - 2

Solution steps

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

Simplify

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

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

Group like terms

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

Add similar elements:

2 x^{2} + x^{2} = 3 x^{2}

= 3 x^{2} - 6 x + 4 x - 2

Add similar elements:

- 6 x + 4 x = - 2 x

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

\frac{4}{40}

a^{6} - (a - 1)^{2}

3 x^{2} - 12 x + 15

x (2 x - 1)^{2}

2 (0.1)

What is (2x^2-6x-2)+(x^2+4x) ?
The solution to (2x^2-6x-2)+(x^2+4x) is 3x^2-2x-2