Question

Multiply and simplify: 3a(4a2 – 5a + 12)
A. 12a2 – 15a + 36
B. 12a3 – 15a2 + 36a
C. 7a3 – 2a2 + 15a
D. 7a2 – 2a + 15

Answer 1

sorry about that

Answer 2

what do you think @Takirap2000

Answer 3

Use FOIL :)

Answer 4

I am thinking it B without even doing it on paper

Answer 5

B is correct :D

Answer 6

okay

Answer 7

do you understand how u got it :D

Answer 8

I will post the other question

Answer 9

no I just guess I just look at the problem then look at the answer and got that

Answer 10

ok so first we distribute 3a over 4a2-5a+12
3a(4a2−5a+12)=3a(4a2)+3a(−5a)+3a X 12

Answer 11

whats next ?

Answer 12

okay so we get 12a + (-15a) + 3a X 12

Answer 13

it will be 12a - 15a + 36

Answer 14

12a2 I mean

Answer 15

wait what are u doing?

Answer 16

I am multiply them

Answer 17

ok we get
\[3\times4aa ^{2}-5\times3aa+3\times12a\]

Answer 18

okay

Answer 19

Then we multiply 3 and 12a
\[3\times12=36\]
so we get
\[3\times4aa ^{2}-5\times3aa+36a\]

Answer 20

okay

Answer 21

so next combine like terms
\[3a(-5)a=3a ^{2}(-5)\] an get

\[3\times4aa ^{2}+(-5\times3a ^{2})+36a\]

Answer 22

so whats next

Answer 23

12a3 - 15a2 + 36a

Answer 24

if you understand it tell me so i dont have to keep on explaining :D

Answer 25

okay I do it just sometime I am really don't understand this kind of math

Answer 26

so you want me to continue

Answer 27

yes help me with the next question