What are the solutions to the equation factor x^2+10x+21=0 ?

The solutions to the equation factor x^2+10x+21=0 are x=-3,x=-7

Find the zeros of factor x^2+10x+21=0

The zeros of factor x^2+10x+21=0 are x=-3,x=-7

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

x = - 3, x = - 7

Solution steps

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

Factor

x^{2} + 10 x + 21 : (x + 3) (x + 7)

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

Using the Zero Factor Principle:

ab = 0

then

a = 0

b = 0

x + 3 = 0 or x + 7 = 0

Solve

x + 3 = 0 : x = - 3

Solve

x + 7 = 0 : x = - 7

The solutions to the quadratic equation are:

x = - 3, x = - 7

2 x^{2} - 2 x - 40 = 0

x - x^{2} = 4 x - 4 x^{2}

2 x^{2} = (\frac{6}{7}) x + 2

x, 3 x^{2} - 4 x - 4 = 0

x^{2} + 8 x = - 15

What are the solutions to the equation factor x^2+10x+21=0 ?
The solutions to the equation factor x^2+10x+21=0 are x=-3,x=-7
Find the zeros of factor x^2+10x+21=0
The zeros of factor x^2+10x+21=0 are x=-3,x=-7