Question

Solve
x^2+8x=15
2x^2+5x=-3

Answer 1

Answer:

Step-by-step explanation:

x = -3

x =(1-√41)/4=-1.351

x =(1+√41)/4= 1.851

Step by step solution :

Step  1  :

Equation at the end of step  1  :

 (((2 • (x3)) +  5x2) -  8x) -  15  = 0

Answer 2

Answer:

2( x^2 + 8x = 15)

2x^2 + 16x =30.....1

2x^2 + 5x = -3.......2

by solving 1&2

2x^2 + 16x = 30

2x^2 + 5x = -3

-. -. +

---------------------

11x = 33

x = 33/11

x = 3