# Solve a pair of intersecting lines

• February 20th 2013, 11:21 PM
Marto1234
Solve a pair of intersecting lines
Hi there,

Can anyone offer some advice on how one would go about solving this equation? I can't figure it out!

(x+2)(y+2)+(x-3)(y+2)=0

Josh
• February 20th 2013, 11:36 PM
jakncoke
Re: Solve a pair of intersecting lines
$(x+2)(y+2) + (x-3)(y+2) = 0$ only when $(x+2)(y+2) = 0$ and $(x-3)(y+2) = 0$
$(x+2)(y+2) = 0$ when x = -2 or y = -2
$(x-3)(y+2) = 0$ when x = 3 or y = -2
y=-2 is the only one which makes both eqn 0, so y = -2 is the soln.
• February 21st 2013, 12:27 AM
Marto1234
Re: Solve a pair of intersecting lines
Hi Dave,