SOLUTION: xy=8 2x+3y+8=0 it says solve the simultaneous equations.please assist

Question 434679: xy=8
2x+3y+8=0
it says solve the simultaneous equations.please assist
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Solve the first equation for y in terms of x:

Then substitute this value of y into the other equation in place of y:

Multiply both sides by x:

But 64 - 192 < 0 so there are no real roots. That is to say there is no solution to your system of equations. If you graph the two equations, you will see that they do not intersect.

John

My calculator said it, I believe it, that settles it

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