Question

Determine whether x=-1 is a root of the equation x^2-3x+2=0
Question from quadratic equations.

Answer 1

Given

x^2 - 3x + 2 = 0

on putting x = -1 in equation , we get

(-1)^2 - 3 × (-1) + 2 = 0

1 + 3 + 2 =0

6 = 0

Hence RHS is not equal to LHS

therfore

x = -1 is not the root of given equation

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