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In this question we will use identity:-
(a+b) ^2=a^2+b^2+2ab
So the answer to this question will be :-
=(6) ^2+(7)^2+2*6*7
=36+49+84
=169
(a+b) ^2=a^2+b^2+2ab
So the answer to this question will be :-
=(6) ^2+(7)^2+2*6*7
=36+49+84
=169
Answered by
2
(6+7)² = 6²+7²+2ab
Now, using the identity of (a+b)².
then,
•6²+7²+2×6×7 = 6²+7²+2ab.
•6²+7²+84 = 6²+7²+2ab.
•36+49+84 = 36+49+2ab.
Simplifying.........
•(36-36)+(49-49)+84 = 2ab.
•84 = 2ab
that means,
•2ab = 84.
•ab = 84/2.
•ab = 42.
So, Ab will be equal to 42.
[If You Want To Find Out The Answer Is (6+7)².
Then, 6²+7²+2×6×7.
•36+49+84.
•169.]
PLEASE MARK IT AS A BRAINLIEST ANSWER.
Now, using the identity of (a+b)².
then,
•6²+7²+2×6×7 = 6²+7²+2ab.
•6²+7²+84 = 6²+7²+2ab.
•36+49+84 = 36+49+2ab.
Simplifying.........
•(36-36)+(49-49)+84 = 2ab.
•84 = 2ab
that means,
•2ab = 84.
•ab = 84/2.
•ab = 42.
So, Ab will be equal to 42.
[If You Want To Find Out The Answer Is (6+7)².
Then, 6²+7²+2×6×7.
•36+49+84.
•169.]
PLEASE MARK IT AS A BRAINLIEST ANSWER.
Akv2:
please mark it as the brainliest answer.
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