Question

factorize by using algebraic identities 9-81x^2

Answer 1

Answer:

9(3x+1)(−3x+1)

Step-by-step explanation:

Factor 9−81x^2

−81x^2+9

=9(3x+1)(−3x+1)

Answer 2

Answer:

(3+9x) (3-9x)

Step-by-step explanation:

9-81x^2

=(3)^2-(9x)^2

=(3+9x) (3-9x)

=3(1+3x) (1-3x)

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