Fungsi g dinyatakan dgn g(x)=x^+px+q.Jika nilai g(3)=-8 dan g(-2)=7 Tentukan : A.nilai p dan q B.bentuk fungsi g C.nilai g(-6)+g(4)

g(x) = x² + px + q
g(3) = 3² + 3p + q
- 8 = 9 + 3p + q
3p + q = - 8 - 9
3p + q = - 17
g(-2) = (-2)² + p(-2) + q
7 = 4 - 2p + q
- 2p + q = 7 - 4
- 2p + q = 3

3p + q = - 17
- 2p + q = 3
-------------------(-)
5p = - 20
p = - 4

3p + q = - 17
3(-4) + q = - 17
- 12 + q = - 17
q = - 17 + 12
q = - 5

b) g(x) = x² - 4x - 5

c) g(-6) = (-6)² - 4(-6) - 5 = 36 + 24 - 5 = 55
g(-2) = (-2)² - 4(-2) - 5 = 4 + 8 - 5 = 7
g(-6) + g(-2) = 55 + 7 = 62