(-2x+5y-3z) whole square
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Answer:
(-2x+5y-3z)^2
=(-2x)^2+(5y)^2+(-3z)^2+2.(-2x).(5y)+2.(5y).(-3z)
+2.(-3z).(-2x)
=4x^2+25y^2+9z^2-20xy-30yz+12zx
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