Possible methods include substitution and graphing.
y = 5x2 + 7x − 6
y = 0
To use substitution set the two equations equal to each other.
5x2 + 7x − 6 = 0
Solve for x using the quadratic formula or by completing the square.
Use the Quadratic Formula:
x = 0.6 and −2
2 points of intersection