simplify (2a+3)^2-(2a-3)^2
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Answered by
21
(2a+3)^2-(2a-3)^2
= {( 2a+3-(2a-3)} {(2a+3+(2a-3)}
= ( 2a+3-2a+3)(2a+3+2a-3)
= (6)(4a)
= 24a
Answered by
9
Step-by-step explanation:
(2a+3)²-(2a-3) ²
[(2a) ²+3² +2×2a×3]-[(2a) ²+(3)²-2×2a×3]
(4a²+9+12a) -(4a²+9-12a)
4a²+9+12a-4a²-9+12a
24a
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