Question

(a² + 9)² - 36a²

Answer 1

\(\left(a^2+9\right)^2-36a^2\)

\(=\left(a^2+9+6a\right)\left(a^2+9-6a\right)\)

\(=\left(a+3\right)^2.\left(a-3\right)^2\)

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Answer 2

\(\left(a^2+9\right)^2-36a^2\)

\(=\left(a^2+9+36a^2\right)\cdot\left(a^2+9-36a^2\right)\)

\(=\left(37a^2+9\right)\cdot\left(-35a^2+9\right)\)

Answer 3

= (a² + 3 - 6a) (a² + 3 + 6a)

Answer 4

\(\left(a^2+9\right)^2-36a^2\)

\(=\left(a^2+9\right)^2-\left(6a\right)^2\)

\(=\left(a^2+9-6a\right)\left(a^2+9+6a\right)\)

\(=\left(a-3\right)^2\left(a+3\right)^2\)

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Answer 5

(a²+9)²-36a²

=(a²+9-6a)(a²+9+6a)

=(a-3)²(a+3)²

Answer 6

\(\left(a^2+9\right)^2-36a^2\)

\(=\left(a^2+9-6a\right)\left(a^2+9+6a\right)\)

\(=\left(a-3\right)^2\left(a+3\right)^2\)

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