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Popular >

simplify (x-1)-(x^2-1)

Solution

simplify

(x - 1) - (x^{2} - 1)

Solution

- x^{2} + x

Solution steps

(x - 1) - (x^{2} - 1)

Apply rule:

(a) = a

(x - 1) = x - 1

= x - 1 - (x^{2} - 1)

Apply the distributive law:

- (a - b) = - a + b

- (x^{2} - 1) = - x^{2} + 1

= x - 1 - x^{2} + 1

Group like terms

= - x^{2} + x - 1 + 1

Add the numbers:

- 1 + 1 = 0

= - x^{2} + x

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Frequently Asked Questions (FAQ)

What is (x-1)-(x^2-1) ?
The solution to (x-1)-(x^2-1) is -x^2+x