Answer:
14
Step-by-step explanation:
Let's find (f-g)(x)

Now let's plug in x=2, so to find (f-g)(2)

the answer is option A........
consider expanding into the brackets, helpful?
There is an example hope it helped
A
you have to solve x^2+x-5=0
So x=(-1 +/- sqrt(1^2+4*1*5))/2
x=(-1 +/- sqrt(21))/2
One side of Square A is the hypotenuse of the white triangle. The square of this hypo. is 24^2+10^2 = 576 + 100 = 676. Since the square of the hypo is the area of Square A, Square A has the area 676 sq. in.