Divide using synthetic division. (r^4 - 3r^3 - 15r^2 + 7r + 2) / (r + 3)
2 answers:
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Answer:
A. 7
B. -3
C. 8
D. 13
E. 5a+17
F. + 8a + 20
Step-by-step explanation:
A. f(1) = 5*1 +2, which equals 7
B. f(-1)= 5(-1)+2 which equals -3
C. g(-3)= (-3)^2+ 2(-3)+ 5 = 9- 6+ 5 = 8.
D. g(2)= (2)^2+ 2(2)+ 5= 4+ 4+ 5= 13.
E. f(a+3)= 5(a+3)+2 = 5a+ 15+ 2= 5a+ 17.
F. g(a+3)= (a+3)^2+ 2(a+3)+ 5= + 6a+ 9+ 2a+ 6+ 5=
+ 8a+ 20.