Factor out the GCF, then solve the following expression.
3x² + 21x = 0
A {0, 24}
B {-7, 3}
C {0, 7}
D {-7, 0}

D {-7, 0}

Step-by-step explanation:

The GCF is 3x

3x(x+7) = 0

x = {-7, 0}

D {-7, 0}

Step-by-step explanation:

3x^2 = 3*x*x

21x = 3*7*x

The greatest common factor is 3x

3x(x+7) =0

Using the zero product property

3x=0  x+7 =0

x=0    x+7-7 =0-7

x=0     x=-7

relating to or denoting a system of numbers and arithmetic based on the number ten, tenth parts, and powers of ten.

it alot will look like this 4.4

a

step-by-step explanation:

strong negative correlation