Please Help! The equation A = p + prt is used to find the accumulated amount, A, of an investment with principal, P. a
certain interest rate, r, and over time, t. What is the value for r, after the equation is rearranged? (5 points)
A + P
pt
А
P
pt
A - 1
t
r=A-p-pt

the answer is

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

mental cunning

explanation:

he is often referred to as a man of twists and turns