SOLUTION: Write: xk–xy–{{{x^2}}}+yk as a product
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Question 1066448
:
Write: xk–xy–
+yk as a product
Answer by
Boreal(15235)
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xk–xy–x^2+yk
xk+yk-xy-x^2, grouping
k(x+y)-x(y+x)
(k-x)(y+x)
expand should give the four factors above
ky+kx-xy-x^2 checks.