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If x+y=9 and x-y=3 then the value of 2x2+2y2. |
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Answer» Answer: Step-by-step EXPLANATION: X+y=9 X-y=3 We should add 2x=12 X=6 Substitute x=6 in x+y=9 6+y=9 Y=3 Given question 2x^2+2y^2 2(6)^2+2(3)^2 2×36+2×9 72+18 90 |
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