Solve x^2+10x+21=0

Evaluate

x^{2} + 10 x + 21 = 0

Factor the expression

More Steps

(x + 3) (x + 7) = 0

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

x + 3 = 0 x + 7 = 0

Solve the equation for x

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x = - 3 x + 7 = 0

Solve the equation for x

More Steps

x = - 3 x = - 7

Solution

x_{1} = - 7, x_{2} = - 3

X^2+10x+21=0