2a^2+5b^2
solve by algebra identity
(for class 7)
Answers
Answered by
0
Answer:
2a²+5b²
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Answered by
0
Answer:
4a^2 + 20ab + 25b^2
Step-by-step explanation:
2a^2 +5b^2 can also be written as (2a + 5b)^2
By (a+b)^2 = a^2 + 2ab + b^2
= 2a^2 + 2(2a)(5b) + 5b^2
= 4a^2 + 20ab + 25b^2
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