( a + b ) ^4 = ..................
amitnrw:
((a^2+b^2) + 2ab)^2 = (a^2+b^2)^2 + 4a^2b^2 + 2×2ab(a^2+b^2)
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Answered by
1
heya your answer is here....
by using binomial theorem...hope it helps...
by using binomial theorem...hope it helps...
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Answered by
1
Answer:
a^4 + b^4 + 6a^2b^2 + 4a^3b + 4ab^3
Step-by-step explanation:
(a+b)^4
=( (a+b)^2)^2
=(a^2 +b^2+2ab)^2
= ((a^2+b^2)+(2 a b))^2
= (a^2 + b^)^2 + (2ab)^2 + 2(a^2+b^2)(2ab)
= a^4 + b^4 + 2a^2b^2 + 4a^2b^2 + 4a^3b + 4ab^3
= a^4 + b^4 + 6a^2b^2 + 4a^3b + 4ab^3
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