Ask Question
23 April, 17:22

Given that

g (x) = 3x2+2x+5

find each of the following.

a)

g (-6)

b)

g (p+2)

+2
Answers (2)
  1. 23 April, 17:27
    0
    A.

    sub - 6 for x

    g (-6) = 3 (-6) ^2+2 (-6) + 5

    g (-6) = 3 (36) - 12+5

    g (-6) = 108-7

    g (-6) = 101

    b.

    sub p+2 for x

    g (p+2) = 3 (p+2) ^2+2 (p+2) + 5

    g (p+2) = 3 (p^2+4p+4) + 2p+4+5

    g (p+2) = 3p^2+12p+12+2p+9

    g (p+2) = 3p^2+14p+21
  2. 23 April, 17:45
    0
    A) Substitute - 6 for where x is in the expression ...

    g (-6) = 3 (-6) ^2 + 2 (-6) + 5

    g (-6) = 3 (36) + 2 (-6) + 5

    g (-6) = 108 + 2 (-6) + 5

    g (-6) = 108 - 12 + 5

    g (-6) = 96 + 5

    g (-6) = 101

    b) Substitute (p + 2) into where x is ...

    g (p + 2) = 3 (p + 2) ^2 + 2 (p + 2) + 5

    g (p + 2) = 3 (p + 2) (p + 2) + 2 (p + 2) + 5

    g (p + 2) = 3 (p^2 + 4p + 4) + 2 (p + 2) + 5

    g (p + 2) = 3p^2 + 12p + 12 + 2 (p + 2) + 5

    g (p + 2) = 3p^2 + 12p + 12 + 2p + 4 + 5

    g (p + 2) = 3p^2 + 14p + 21
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Given that g (x) = 3x2+2x+5 find each of the following. a) g (-6) b) g (p+2) ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers