Solve –12x 9 = –15x x =

Evaluate

- 12 x \times 9 = - 15 x \times x

Multiply the terms

- 108 x = - 15 x \times x

Multiply the terms

- 108 x = - 15 x^{2}

Swap the sides

- 15 x^{2} = - 108 x

Move the expression to the left side

- 15 x^{2} + 108 x = 0

Factor the expression

More Steps

- 3 x (5 x - 36) = 0

When the product of factors equals 0,at least one factor is 0

5 x - 36 = 0 - 3 x = 0

Solve the equation for x

More Steps

x = \frac{36}{5} - 3 x = 0

Solve the equation for x

More Steps

x = \frac{36}{5} x = 0

Solution

x_{1} = 0, x_{2} = \frac{36}{5}

Alternative Form

x_{1} = 0, x_{2} = 7.2

Solve the quadratic equation