If x-y=7 and xy=9 find the value of x2y2
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( x - y )^2 = x^2 + y^2 - 2xy
(7)^2 = x^2. + y^2 - 2*9
49 = x^2 + y^2 - 18
49 - 18 = x^2 + y^2
31 = x^2 + y^2
hope my answer will help you...... please mark as brainlist..
(7)^2 = x^2. + y^2 - 2*9
49 = x^2 + y^2 - 18
49 - 18 = x^2 + y^2
31 = x^2 + y^2
hope my answer will help you...... please mark as brainlist..
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