Expand
$(2 x-y-5)^{2}$
Expand
$(2 x-y-5)^{2}$
$(2 x-y-5)^{2}$
$=(2 x)^{2}+(-y)^{2}+(-5)^{2}+2(2 x)(-y)$$+2(-y)(-5)+2(-5)(2 x)$
$=4 x^{2}+y^{2}+25-4 x y+10 y-20 x$
Similar Questions
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