Solve the following system of equations and show all work. y = 2x2 y = –3x −1

For this case we have a system of two equations with two unknowns:

Matching we have:

We have a quadratic equation of the form

Where:

Applying the quadratic formula we have:

Substituting:

We have two roots:

Now, we look for the values of y, substituting in any of the equations:

ANswer:

i used to know how to do this in 7th but i forget easily

step-by-step explanation:

both equations and proportions are better.