Answer:
36a²b-60a²bc
6×6×a²×b-6×10×a²b×c
6a²b(6-10c)
6a²b((2(3-5c))
6×2a²b(3-5c)
12a²b(3-5c)
.84
Step-by-step explanation:
21/25 = .84
f’(x) = x -2/7
Let f(x)= y
Thus;
y = x + 2/7
x = y-2/7
So the inverse f’(x) = x - 2/7
the correct answer is x = 3x - 5
