1. 6 over 2 =21 over x find X 2. 2 over x= 8 over 12 find X

Please give me an explanation

1)x=7

2)x=3

Step-by-step explanation:

6/2=21/x

6/2=3

21/x

21/3

X=7

2/x=8/12

2/x=8/12

2*12

8*x

8x/8 24/8

X=3

hello from mrbilldoesmath!

answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb