i'd be really grateful if someone could complete this simultaneous equation with working out explaining each stage of the process. thanks.
y = 2x + 3
x2 + y2 = 2
cheers guys. appreciate the help.
the only bit i'm not too sure on is how to get from
x2 + (2x+3)2 = 2 to
x2 + 4x2 + 12x = 9 =2
would really appreciate if you could explain what i have to do.