What is (-x^2-4x-5)+(-x^2+8x+8) ?

The solution to (-x^2-4x-5)+(-x^2+8x+8) is -2x^2+4x+3

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simplify (-x^2-4x-5)+(-x^2+8x+8)

simplify

(- x^{2} - 4 x - 5) + (- x^{2} + 8 x + 8)

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

Solution steps

(- x^{2} - 4 x - 5) + (- x^{2} + 8 x + 8)

Simplify

(- x^{2} - 4 x - 5) + (- x^{2} + 8 x + 8) : - x^{2} - 4 x - 5 - x^{2} + 8 x + 8

= - x^{2} - 4 x - 5 - x^{2} + 8 x + 8

Group like terms

= - x^{2} - x^{2} - 4 x + 8 x - 5 + 8

Add similar elements:

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

= - 2 x^{2} - 4 x + 8 x - 5 + 8

Add similar elements:

- 4 x + 8 x = 4 x

= - 2 x^{2} + 4 x - 5 + 8

Add the numbers:

- 5 + 8 = 3

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

(4 x^{2} - 8 x - 2) (x^{4} + 3 x^{2} + 4 x)

x^{3} + x^{3}

(x + 4) (x - 5)

(z - 3)^{3}

lo g_{28} (7) + lo g_{28} (4)

What is (-x^2-4x-5)+(-x^2+8x+8) ?
The solution to (-x^2-4x-5)+(-x^2+8x+8) is -2x^2+4x+3