SOLUTION: y=–7x2+70x–153 intersects y=–4x2+40x–78 at

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equations Lessons  -> Quadratic Equation Lesson -> SOLUTION: y=–7x2+70x–153 intersects y=–4x2+40x–78 at      Log On


   

Question 1000048: y=–7x2+70x–153 intersects y=–4x2+40x–78 at
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Here is a hint:
y=y

You have two expressions or formulas for y. For what x value or values are they equal?

%967x%5E2%2B70x%96153=%964x%5E2%2B40x%9678

Not rendering, so here it is in pure text:
–7x^2+70x–153=–4x^2+40x–78