find the value of each product for X=-1,y=-2,z=1 (a) x^2(1+y^2-2xy)
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Step-by-step explanation:
x^2(1+y^2-2xy)
=(-1)^2 [1+(-2)^2-2(-1)(-2)]
=1[1+4-4]
=1
Hope it will help you.
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