Thread: Solving

Solve the following:
a) 2^2x-2(2^x)=3
b) a bacterial culture starts with 1500 bacteria. After 5h, the estimated count is 35 000. What is the doubling period?
c) When the function f(x)=ax³+7x²+bx-8 is divided by (x+1) it has a remainder of 18; and (x-2) is a factor. Determine a and b.

(a) let ... can you solve ?

(b)



solve for the growth constant , then determine the time when

(c) and ... why?

you should get two equations with two unknowns ... solve for a and b