Question

If x square plus y square =47
Xy=19/2
Value of 3(x+y)whole square and (x-y)whole square

Answer 1

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Answer 2

x+y = 47 and xy= 19/2

3(x+y) whole square+(x-y) double square

= 3( × square + y square +2xy) + (x square+y square -2xy

3(47 +(2×19/2)) + (47 - (2×19/2))

3(47 + 19) +( 47-19)

3(66) + (28)

198 +28

226