use Newton's method to find a solution for each equation in the given intervals. Find all solution to the nearest hundredth.

A) 3x^4 + 4x^3 -6x^2 -2x -12 =0 [-3,-2] ,[1,2]

This one have two interval , so how can I do ? it's that I have to pick up two numbers for each interval and solved it?

B) e^2x + 3x -4 =0 [0,3]

I really sick on the exponential function.......help me!~~

thanks!~