Simplify X (2x²-7x+3) and find the value of it for X=1 x= -1 – InterviewSolution

1.

Simplify X (2x²-7x+3) and find the value of it for X=1 x= -1

Answer»

x(2x²-7x+3)

=2x³-7x²+3x

•if x=1

=(2*1*1*1) - (7*1*1) + 3*1

=2 - 7 +3

=2+3-7

=5-7

= -2

•if x= -1

={2*(-1)*(-1)*(-1)} -{7*(-1)*(-1)} +3*(-1)

= -2-7-3

= -12

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