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(2a+3b)²-(2a-3b)² =24ab
Answers
Answered by
19
Answer:
a² - b² = (a+b)(a-b)
Step-by-step explanation:
(2a+3b)² - (2a-3b)²
(2a+3b+2a-3b) (2a+3b-2a+3b)
4a * 6b
(4*6)ab
24ab
Answered by
18
(2a+3b)²-(2a-3b)²
=(4a²+9b²+12ab)-(4a²+9b²-12ab)
=4a²+9b²+12ab-4a²-9b²+12ab
= 4a²-4a²+9b²-9b²+12ab+12ab
=24ab
Hence, L.H.S.=R.H.S.(is proved)
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