Solve the following equation using quadratic formula: 25x^2 + 30x + 7 = 0

Comparing equation 25x2 + 30x + 7 = 0 with ax2 + bx + c = 0, we get : a = 25, b = 30 and c = 7. By formula, x = Substituting values we get : Hence, .

Solve the following equation using quadratic formula:
4 - 11x = 3x²