Question

Is x=-2, Solution of equation X²-2X+8
​

Answer 1

Step-by-step explanation:

Answer

Let,

p(x)=x

2

−2x+8

⟹p(−2)=(−2)

2

−(−2)2+8

⟹p(−2)=16

Hence it is not the solution of given eq.

Answer 2

$= ( - 2) {}^{2} - {2}( - 2) + 8 \\ = 4 + 4 + 8 \\ = 16$