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Popular >

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

Solution

simplify

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

Solution

8 x^{2} + x + 4

Solution steps

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

Apply rule:

(a) = a

(x - 4) = x - 4

= x - 4 - (- 8 x^{2} - 8)

Apply the distributive law:

- (- a - b) = a + b

- (- 8 x^{2} - 8) = 8 x^{2} + 8

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

Group like terms

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

Add the numbers:

- 4 + 8 = 4

= 8 x^{2} + x + 4

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Frequently Asked Questions (FAQ)

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