factorize by using algebraic identities 9-81x^2
Answers
Answered by
0
Answer:
9(3x+1)(−3x+1)
Step-by-step explanation:
Factor 9−81x^2
−81x^2+9
=9(3x+1)(−3x+1)
Answered by
1
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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