Answer:
Step-by-step explanation:
(a)
f(-2)
2(-2)-1
-4-1
-5
(b)
h(3b)
2(3b)²+3b-1
2(9b²)+3b-1
18b²+3b-1
9
(c)
x+1 - 3(2x-1)-2(2x²+x-1)
x+1 - 6x+3-4x²-2x+2
-4x²-7x+6
(d)
(f-g)(-2)
2x-1-(x+1)
2x -1 - x - 1
x - 2
-2 - 2
-4
(e)
((2x²+x-1)(x+1))
2x³+2x²+x²+x-x-1
2x³+3x²-1
