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Popular >

factor y^2-4

Solution

factor

y^{2} - 4

Solution

(y + 2) (y - 2)

Solution steps

y^{2} - 4

Rewrite

4

as

2^{2}

= y^{2} - 2^{2}

Apply Difference of Two Squares Formula:

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

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

= (y + 2) (y - 2)

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Frequently Asked Questions (FAQ)

What is factor y^2-4 ?
The solution to factor y^2-4 is (y+2)(y-2)