What is (8x-4-4x^2)+(7x^2-9x-6) ?

The solution to (8x-4-4x^2)+(7x^2-9x-6) is 3x^2-x-10

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simplify (8x-4-4x^2)+(7x^2-9x-6)

simplify

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

3 x^{2} - x - 10

Solution steps

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

Simplify

(8 x - 4 - 4 x^{2}) + (7 x^{2} - 9 x - 6) : 8 x - 4 - 4 x^{2} + 7 x^{2} - 9 x - 6

= 8 x - 4 - 4 x^{2} + 7 x^{2} - 9 x - 6

Add similar elements:

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

= 8 x - 4 + 3 x^{2} - 9 x - 6

Group like terms

= 3 x^{2} + 8 x - 9 x - 4 - 6

Add similar elements:

8 x - 9 x = - x

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

Subtract the numbers:

- 4 - 6 = - 10

= 3 x^{2} - x - 10

8 \cdot 0.25 - 1 + 14

53 - 33

x^{2} y^{- 2}

- 20 a - 50 a - 40 a - a

(- 1) + 1

What is (8x-4-4x^2)+(7x^2-9x-6) ?
The solution to (8x-4-4x^2)+(7x^2-9x-6) is 3x^2-x-10