K (x) = -2x^2+10x+5, Evaluate k (3)

Question

Tony Ortiz

Mathematics

14 December, 09:34

K (x) = -2x^2+10x+5, Evaluate k (3)

+4

Answers (2)

Know the Answer?

Ximena Atkins · Answer 1

71

Step-by-step explanation:

-2 (3) ^2 + 10 (3) + 5

So first you multiply the - 2 by the 3

(-6) ^2+10 (3) + 5

then you do the exponents

36+10 (3) + 5

then you multiply the 10 by 3

36+30+5

then you would add 36 and 30

66+5

then add the 5

71

Wrigley · Answer 2

17

Step-by-step explanation:

k (x) = -2x^2+10x+5

k (3) = -2 (3) ^2+10 (3) + 5

k (3) = -2 (9) + 30+5

k (3) = -18+35

= 17