(a+b)2 - (a-b) 2=Чаb
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Answer:
(a+b) ² - (a-b) (a-b) ² = 4ab
08
(a+b)²-(a-b)²
a2 + b2 + 2ab - a2 - b2 + 2ab
2ab + 2ab
4ab
Answered by
0
Answer:
(a+b)²-(a-b)²
=(a²+b²+2ab)-(a²+b²-2ab)
=a²+b²+2ab-a²-b²+2an........................sign is changed due to -ve sign before the bracket
now,
=a²-a²+b²-b²+2ab+2ab
=4ab ans. Hence proved.
Step-by-step explanation:
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