Question

SUBTRACT THE POLYNOMIALS
(7xy^3+5x^3y^4)-(4xy^3-2x^3y^4)

Answer 1

DO NOT FACTOR

Answer 2

simplify answer

Answer 3

Just subtract the like terms.

Answer 4

walk me through it please..!!!

Answer 5

..?

Answer 6

(7xy³ + 5x³y⁴) - (4xy³ - 2x³y⁴)

(7xy³ + 5x³y⁴)+(-1)(4xy³ - 2x³y⁴)

7xy³ + 5x³y⁴ - 4xy³ + 2x³y⁴

Now combine like terms.

Answer 7

ugh i cant . i ve been stuck for about an hour

Answer 8

3xy^3?

Answer 9

Yes, because 7 - 4 = 3.

Answer 10

3x^3

Answer 11

and the last one?

Answer 12

7xy³ - 4xy³

(7 - 4)(xy³)

3xy³

Answer 13

For last one, just do what I showed you.

Answer 14

5x³y⁴ + 2x³y⁴

???

Answer 15

Factor x³y⁴ out.

Answer 16

7x^3y^4?

Answer 17

Yes!

Answer 18

great picture i love team fortress lol

Answer 19

so all together 3xy^3+7x^3y^4

Answer 20

Yes.

Answer 21

Is this clear?

Answer 22

now it is thanks so much

Answer 23

Glad I helped.

Answer 24

can you help with one more please

Answer 25

??

Answer 26

Sure.

Answer 27

i need to combine like terms with
3a*9a^2+3a*6a+3a*3+3*9a^2+3*6a+3*3

Answer 28

i know the first one is 27a^3

Answer 29

What about second one? (3a*6a)

Answer 30

18a?

Answer 31

^2?

Answer 32

a·a = a² so 3a·6a = 3·6·a·a = 18a²

Yes. 18a²

Answer 33

What don't you understand? I think you can handle it.

Answer 34

thats where i get stuck. 27a^3+18A^2+ ?? 9A? +3????? AHHHH

Answer 35

Next one. 3a*3

What is it?

Answer 36

9a?

Answer 37

Yes. What about 3*9a²?

Answer 38

27a^2

Answer 39

?

Answer 40

Yes. 3*6a = ?

Answer 41

18a?

Answer 42

Yes! Last one. 3*3 = ?

Answer 43

9!

Answer 44

Excellent! Now you go from

3a*9a² + 3a*6a + 3a*3 + 3*9a² + 3*6a + 3*3

To

27a³ + 18a² + 9a + 27a² + 18a + 9.

Now it is cleaner. Now all you have to do is combining like terms. Do you know what to do?

Answer 45

...not really lets keep it going i get it so far

Answer 46

Which term has a²? What about a?

Answer 47

is this right? 27a^3+45a^2+27a+9 ???

Answer 48

18a² and 27a² both share a². These terms are called like terms. 9a and 18a are like terms. You can combine them together by add 'coefficient' (18 and 27). Is this clear?

Yes it's 27a³ + 45a² + 27a + 9.

Answer 49

So i did it RIGHTTT!?

Answer 50

Yeah.

Answer 51

Does this make sense now?

Answer 52

it told me i got it wrong.. =(

Answer 53

apparently the correct answer was 27a^3+81a^2+81a+27

Answer 54

Are you sure you didn't typo?

3a*9a² + 3a*6a + 3a*3 + 3*9a² + 3*6a + 3*3