solve by using the quadratic equation:
5x^2+3=-7x
quadratic formula
x = (-b +- (sqrt(b^2 - 4ac))/2a
5x^2 + 3 = -7x
5x^2 + 7x + 3 = 0
a = 5, b = 7, c = 3
plug these into the formula and solve
5x^2+3=-7x
x = (-b +- (sqrt(b^2 - 4ac))/2a
5x^2 + 3 = -7x
5x^2 + 7x + 3 = 0
a = 5, b = 7, c = 3
plug these into the formula and solve