In each of the following determine whether the given values is/are the solution of the given equation or not x2- 2x2+8=0; x=-2
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given equation p(x) = x2 - 2x2 +8
= - x2 +8
P(-2) = -(-2)2 + 8 = - 4+8 = 4
P(-2) = 4, only when p(-2) = 0, -2 is a a solution to the given equation.
So -2 is not the solution of x2 - 2x2 +8 = 0
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