Question

System of equations!!!

Answer 1

Explanation:

1. x^2-x-20=3x-15

x=5, x=1 substitute

y=3*5-15 = 0

y=3*(-1)-15 = -18

Solution: (5,0) & (-1,-18)

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

x=-2, x=1 substitute

y= -2+5 = 3

y=1+5 = 6

Solution: (-2,3) & (1,6)