Solve x^2 +4x-42=3

Evaluate

x^{2} + 4 x - 42 = 3

Move the expression to the left side

x^{2} + 4 x - 45 = 0

Factor the expression

More Steps

(x - 5) (x + 9) = 0

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

x - 5 = 0 x + 9 = 0

Solve the equation for x

More Steps

x = 5 x + 9 = 0

Solve the equation for x

More Steps

x = 5 x = - 9

Solution

x_{1} = - 9, x_{2} = 5

X^2 +4x 42=3