simplify (3x+4)(3x-4)
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9
(3x+4)(3x-4)
Using identity: (a+b)(a-b) = a²-b²
= (3x)²-(4)²
= 9x²-16
Answered by
2
Answer:
Formula = (a+b)(a-b) = a^2-b^2
= (3x +4) (3x-4) = 3x^2 - 4^2
= 9x^2 -16
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