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Popular >

simplify (a+1)(a-1)-2a+2

Solution

simplify

(a + 1) (a - 1) - 2 a + 2

Solution

a^{2} - 2 a + 1

Solution steps

(a + 1) (a - 1) - 2 a + 2

Expand

(a + 1) (a - 1) : a^{2} - 1

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

Group like terms

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

Add the numbers:

- 1 + 2 = 1

= a^{2} - 2 a + 1

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Frequently Asked Questions (FAQ)

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