3 years ago

If x+y=10 and x-y=4,find the value of xx-yy

Mathematics

1 answer:

Irina18 [472]3 years ago

6 0

Hi,
$x^2-y^2=(x+y)*(x-y)=10*4=40$

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If x+y=10 and x-y=4,find the value of xx-yy