1 + 3 Which expression is equivalent to 12 – 21
2
+ 21 – 3
+ 1 if no denominator equals zero?
Ο Α.
1
2 - 21
3
ОВ.
1
12 - 41 + 3
O C.
1
12 + 21
3
O D.
+ 3

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this

b. hoped i'm right lol

step-by-step explanation:

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