What is 2x^2+8-4x+3x-6x^2+7 ?

The solution to 2x^2+8-4x+3x-6x^2+7 is -4x^2-x+15

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simplify 2x^2+8-4x+3x-6x^2+7

simplify

2 x^{2} + 8 - 4 x + 3 x - 6 x^{2} + 7

- 4 x^{2} - x + 15

Solution steps

2 x^{2} + 8 - 4 x + 3 x - 6 x^{2} + 7

Add similar elements:

- 4 x + 3 x = - x

= 2 x^{2} + 8 - x - 6 x^{2} + 7

Group like terms

= 2 x^{2} - 6 x^{2} - x + 8 + 7

Add similar elements:

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

= - 4 x^{2} - x + 8 + 7

Add the numbers:

8 + 7 = 15

= - 4 x^{2} - x + 15

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90 \cdot 3