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Popular >

factor 18a^4+81+a^8

Solution

factor

18 a^{4} + 81 + a^{8}

Solution

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

Solution steps

18 a^{4} + 81 + a^{8}

Write in the standard form

= a^{8} + 18 a^{4} + 81

Let

u = a^{2}

= u^{4} + 18 u^{2} + 81

Factor

u^{4} + 18 u^{2} + 81 : (u^{2} + 9)^{2}

= (u^{2} + 9)^{2}

Substitute back

u = a^{2}

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

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Frequently Asked Questions (FAQ)

What is factor 18a^4+81+a^8 ?
The solution to factor 18a^4+81+a^8 is (a^4+9)^2