Question

find the value for 8x-2x^2+7 at x=3​

Answer 1

Step-by-step explanation:

$f(x) = 8x - 2x ^{2} + 7 \\ f(3) = 8 \times 3 - 2 \times 9 + 7 \\ = > 24 - 18 + 7 \\ = > 13$