Answer:
One
Step-by-step explanation:
Set each equations equal to each other


Find the discrimant.

This means there is one real solution. Since the discramnt equal 0.
You will flip the signs when you have to multiply or divide your equation by a negative integer.
The answer would be 7/24.
From the following choices, the correct step in evaluating: ∫ cos2 5x dx is 1 - cos 10x / 2dx.