Simplify (2a+3b²)-(2a-3b)²
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Answer:
Answer is 24ab .
Step-by-step explanation:
(2a+3b)²- (2a-3b)
=[(2a)²+ 2×2a×3b+(3b)²]-[(2a)²-2×2a×3b+(3b)²]
=[4a²+12ab+9b²]-[4a²-12ab+9b²]
=4a²+12ab+9b²-4a²+12ab-9b²
=24ab.
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