Question

Evaluate: x²-4x+100 if x= -2​

Answer 1

Answer:

112

Step-by-step explanation:

substituting x= -2 in equation:

(-2)^2 -4(-2) +100

4+8+100= 112

Answer 2

Answer:

Answer is 112

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Step-by-step explanation:

$let \\ f(x) = {x}^{2} - 4x + 100 \\ putting \: the \: value \: x = - 2 \: both \: sides \: we \: get \\ f( - 2) = { ( - 2)}^{2} - 4( - 2) + 100 \\ = > f( - 2) = 4 + 8 + 100 \\ = > f( - 2) = 112$