Math, asked by Arizahauqe, 2 months ago

a4+ a2b2+b4= 21 , a2+ab+b2=7 then a2- ab- b2=??

Answers

Answered by Anonymous

3

a2 + a2 a2 + b4 = 21

a2 + ab + b2 = 7

a2 - ab - b2 = -7

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