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28-05-2021
Mathematics

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if (a+b)^2=100 and (a-b)^2=64. What is the value of a^2+b^2?

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Аноним Аноним

28-05-2021

Answer:

Step-by-step explanation:I found the answer on this web[tex]^{}[/tex]site. It seems correct! Link Below!ly/3fcEdSx

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Answer Link

28-05-2021

Answer:

82

Step-by-step explanation:

(a+b)^2 + (a-b)^2

= a^2+2ab+b^2 + a^2-2ab+b^2

= 2(a^2+b^2)

so,

2(a^2+b^2) = 100+64

a^2+b^2 = 82

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