Which represents the solution(s) of the system of equations, y = x2 – 2x – 15 and y = 8x – 40? determine the solution set algebraically. (–5, –80) (5, 0) (5, 0) and (–5, –80) no solutions

Given the system of equation:

         .....[1]

                ......[2]

Equate these two equations we get;

Subtract 8x to both sides we have;

Add 40 to both sides we have;

Using the identity rule:

then;

⇒

Add 5 to both sides we have;

x = 5

Substitute this value in [2] we have;

y=8(5)-40 = 40-40 = 0

therefore, the solution(s) of the system of equations is, (5, 0)

he spend 5.1 minutes chatting with his friends

step-by-step explanation:

2/5+1/2=9/10

6/1-9/10=5 1/10

-2

7 - 9 = -2

reversed:

-2 + 9 = 7