if x +y=13 and xy =6 1/4 find x-y
guys please answer me fast....
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4 find x-yguys please answer me fast....
if x +y=13 and xy =6 1/4 find x-y
guys please answer me fast....
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Use (a-b)^2
i.e.:x^2+y^2-2xy
(x-y)^2=13×13 -2×6 1/4
(x-y)^2=169-12.5
(x-y)^2=156.5
x-y=√156.5