Question

2. Simplify each expression.
a. (3xy^3)(2x^3y)
b. (x^2+2x+3)(x^2-2x-2)

Answer 1

add the exponents on the like terms
for example \(x\times x^3=x^4\)

Answer 2

These are polynomials.

Answer 3

I know, I'm horrible with them.

Answer 4

wanna do a first?

Answer 5

yes please, I reaally need help, I have a quiz tomorrow.

Answer 6

then it would be best if you do this yourself
i will show you the steps
for \[ (3xy^3)(2x^3y)\]what is \(3\times 2\) ?

Answer 7

6

Answer 8

ok next what is \(x\times x^3\) ?

Answer 9

x^4

Answer 10

I was about to ask her the same. Seems like you have it

Answer 11

right
and finally what is \(y^3\times y\) ?

Answer 12

y^4

Answer 13

And now your final answer...

Answer 14

ok good
then put it all together (write them next to each other) and what you do get as a "final answer"

Answer 15

6+x^4+y^4 ?

Answer 16

oh no dear it is times, not plus
you are not adding

Answer 17

Careful, you do not want to add them.

Answer 18

Satellite, you beat me to it.

Answer 19

ooh so replace the plus with the multiplication symbol.

Answer 20

or replace them by nothing

Answer 21

You don't even need a multiplication symbol. Terms that are together are multiplied.

Answer 22

instead of writing
\[6\times x^4\times y^4\] you can just write
\[6x^4y^4\]

Answer 23

oh! okay thanks for help on the first one guys c:

Answer 24

No problem.

Answer 25

Do you know what you have to do with the second one

Answer 26

kind of haha

Answer 27

I'll start you out here...

Answer 28

Do you understand what the lines mean