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Popular >

factor a^2-400

Solution

factor

a^{2} - 400

Solution

(a + 20) (a - 20)

Solution steps

a^{2} - 400

Rewrite

400

as

2 0^{2}

= a^{2} - 2 0^{2}

Apply Difference of Two Squares Formula:

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

a^{2} - 2 0^{2} = (a + 20) (a - 20)

= (a + 20) (a - 20)

Popular Examples

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\frac{0}{- 10}

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\frac{7}{22} + (- \frac{1}{22})

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(- 6)^{3} (- 6)^{2}

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62 + 62

simplify (1-x)^3+1 simplify

(1 - x)^{3} + 1

Frequently Asked Questions (FAQ)

What is factor a^2-400 ?
The solution to factor a^2-400 is (a+20)(a-20)