Question

Find the product of the following. x2y2z 2 and (xy – yz + zx

Answer 1

Step-by-step explanation:

Squaring both sides

(x+y+z) 2

=x2 +y2 +z2 +2(xy+yz+zx)

we can substitute given values

(x+y+z) 2=18+(2×9)

(x+y+z)2 =36

(x+y+z)=6

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Answer 2

X3y3z2–x2y3z3+x3y2z3