Tolong jawab yaa kak

8. f(x) =  x⁵ + 3x⁴ - 6x² + ax - 2 dibagi (x +3)  sisa  -77 --> f(-3) = - 77
(-3)⁵ + 3(-3)⁴ - 6(-3)² + a(-3) - 2 = - 77
-243 + 243 - 54- 3a - 2 = - 77
-3a  - 56 = - 77
-3a= -77+ 56
-3a = - 21
a = 7
jawab E

9. fog(x)= f{g(x)} = f (√(2x))
= {2(√(2x)} / {(√(2x))²  - 4}
= (2√(2x))  / (2x - 4)
= (2√(2x)) / (2(x -2))
= √(2x)/ (x-2)
jwb C

10. gof(x) = 4x²- 6x + 3
gof(x) = g{ f(x)} = g{1 - 2x}
gof(x)= 4x² - 6x + 3
g(1- 2x)= 4x² - 6x + 3
1- 2x = y
x = (1- y) /2
g(y)=  4{(1-y)/2)}² - 6 {(1-y)/2} + 3
g(x)= 4{1/4(1 - x)²} - 6/2 (1 - x) + 3
g(x)= (1 -x)² -3 (1 - x) +3
g(x)=1- 2x + x² - 3 + 3x + 3
g(x)= x² + x + 1