The expression x^{3} + ax^{2} + bx + 3 is exactly divisible by x+3 but it leaves a remainder of 91 when divided by x-4. What is the remainder when it is divided by x+2 ? HELP ME PLZ asap

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)