InterviewSolution
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InterviewSolution
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- b ) x + ( a + b ) y = a ^ { 2 } - 2 a b - b ^ { 2 } \text { and } ( a + b ) ( x + y ) = a ^ { 2 } + b ^ { 2 } |
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Answer» ax-bx+ay+by=a^2-2ab-b^2ax+bx+ay+by=a^2+b^2subtract 2nd from 1st-2bx=-2ab-2b^2so x=a+bby putting x in 1st equation(a-b)(a+b)+(a+b)y=a^2-2ab-b^2a^2-b^2+(a+b)y=a^2-2ab-b^2so y=-2ab/(a+b) |
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