Answers

2016-07-02T13:30:51+08:00
[(3x+10)(-5x+3)]4 (-15x^2+9x-50x+30)4 (-15x^2-41x+30)4 =-60x^2-164x+120
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2016-07-02T20:16:17+08:00
(g.h)(4)

g(4) . h(4)

g(x)= 3x+10
h(x)= -5x+3
where x=4


g(4) . h(4)
= [3(4)+10] [-5(4)+3]
= (12+10)(-20+3)
= (22)(-17)
= - 374
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