Solve x^{2}-7x-18=0

Evaluate

x^{2} - 7 x - 18 = 0

Factor the expression

More Steps

(x - 9) (x + 2) = 0

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

x - 9 = 0 x + 2 = 0

Solve the equation for x

More Steps

x = 9 x + 2 = 0

Solve the equation for x

More Steps

x = 9 x = - 2

Solution

x_{1} = - 2, x_{2} = 9

Solve the quadratic equation