What are the solutions to the equation factor 7x^2+21x=0 ?

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

Find the zeros of factor 7x^2+21x=0

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

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7 x^{2} + 21 x = 0

x = 0, x = - 3

Solution steps

7 x^{2} + 21 x = 0

Factor

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

7 x (x + 3) = 0

Using the Zero Factor Principle:

ab = 0

then

a = 0

b = 0

x = 0 or x + 3 = 0

Solve

x + 3 = 0 : x = - 3

The solutions to the quadratic equation are:

x = 0, x = - 3

3 m^{2} - 7 m - 2 = 0

(m + 4) (m - 1) = 3

(2 x - 1)^{2} = 4 x

- 5 x^{2} = 90 x + 360

3 r^{2} - 2 r = 21

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