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Popular >

factor a^4-5a^2-36

Solution

factor

a^{4} - 5 a^{2} - 36

Solution

(a^{2} + 4) (a + 3) (a - 3)

Solution steps

a^{4} - 5 a^{2} - 36

Let

u = a^{2}

= u^{2} - 5 u - 36

Factor

u^{2} - 5 u - 36 : (u + 4) (u - 9)

= (u + 4) (u - 9)

Substitute back

u = a^{2}

= (a^{2} + 4) (a^{2} - 9)

Factor

a^{2} - 9 : (a + 3) (a - 3)

= (a^{2} + 4) (a + 3) (a - 3)

Popular Examples

\frac{2}{5} x = - \frac{1}{10}

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simplify 8/(1-sqrt(3))simplify

\frac{8}{1 - 3}

factor kn-mn-n^2+mk factor

kn - mn - n^{2} + mk

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\frac{1}{1.2 \cdot 1 0 ^{- 5}} + \frac{1}{6 \cdot 1 0 ^{- 6}}

Frequently Asked Questions (FAQ)

What is factor a^4-5a^2-36 ?
The solution to factor a^4-5a^2-36 is (a^2+4)(a+3)(a-3)