Algebra questions...?

0 ⤊

Algebra questions...?

solve [g of(J*(of)F)] (-2) if
g(x)= 3x-9 , J(x)=-2x+7 and if f(x)=x2(squared)-5x

2006-09-19 14:46:27 · 2 answers · asked by Shirley B 1 in Science & Mathematics ➔ Mathematics

i got 34 but i have no idea what im doin

2006-09-19 14:51:30 · update #1

2 answers

= [G of(J*(of)F)] (-2)
= [G of(J*(of) (x^2 - 5x))] (-2)
= [G of(-2 (x^2 - 5x) + 7)] (-2)
= [G of(-2x^2 + 10x + 7 )] (-2)
= [ 3(-2x^2 + 10x + 7) - 9 ] (-2)
= [ -6x^2 + 30x + 21 - 9 ] (-2)
= [ -6x^2 + 30x +12 ] (-2)
= -6(-2)^2 + 30(-2) + 12(-2)
= -24 - 60 - 24 = -108

2006-09-19 15:20:15 · answer #1 · answered by Anonymous · 0⤊ 0⤋

Post your proposed answer first!

2006-09-19 21:49:39 · answer #2 · answered by alrivera_1 4 · 0⤊ 0⤋