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Popular >

factor k^2-1

Solution

factor

k^{2} - 1

Solution

(k + 1) (k - 1)

Solution steps

k^{2} - 1

Rewrite

1

as

1^{2}

= k^{2} - 1^{2}

Apply Difference of Two Squares Formula:

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

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

= (k + 1) (k - 1)

Popular Examples

∣ - 2 v - 4 ∣ < 8

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\frac{30}{27}

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\frac{4 a ^{2} - 36}{24 - 8 a}

W = 0 - 3 i

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Frequently Asked Questions (FAQ)

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