Question

Find f(-2) if f(x)= 2x^2-x+5

Answer 1

Answer:

$f(x) = 2{x}^{2} - x + 5 \\ f( - 2) = 2 {( - 2)}^{2} - ( - 2) + 5 \\ f( - 2) = 2(4) + 2 + 5 \\ f( - 2) = 8 + 2 + 5 \\ \boxed{f( - 2) = 15}$

• f(-2) = 15 is the right answer.

Answer 2

Please find attached photograph for your answer