How do you simplify 3x²y x 5xy³?

2008-04-26 11:48 am
Or has anyone got a link to a good website that could help me?
Thanks x
更新1:

Thank to everyone who has answered :) I'm not sure how to do best answer though? Kind of new to yahoo answers lol

回答 (8)

2008-04-26 3:05 pm
✔ 最佳答案
3x^2y* 5xy^3= 15x^3y^4
2008-04-26 7:41 pm
Combine the numbers

3*5 = 15

Then the x's

x^2 * x * x = x^4

then the y's

y*y^3 = y^4

Final form

15*x^4*y^4
參考: Longtime college math teacher
2008-04-26 7:31 pm
3y x 5y3=24y
3x2 x 5x=25x
2008-04-26 6:57 pm
15x^3y^4
3*5=15
x^2*x=x^3
y*y^3=y^4
2008-04-26 6:54 pm
(3x^2y)(5xy^3)
= (3)(5)(x^2)(x)(y)(y^3)
= (15)(x^3)(y^4)
= 15x^3y^4
2008-04-26 6:53 pm
I'm assuming that middle x is a multiplication....

15x³(y^4)

obviously the parentheses come out but I couldn't superscript a a 4
2008-04-26 6:52 pm
(3) (5) (x²) (x) (y) (y³)
15 x³ y^4

Rules
y^a y^b = y^(a + b)
x^a x^b = x^(a + b)
2008-04-26 6:52 pm
Combine all the terms.
3 and 5 can be combined, because 3*5 = 15.
combine all xs and ys.
There is an invisible 1 on the x and y terms that don't have anything written on top. To combine xs and ys like this, add these little numbers together.

So the answer is:
15x^3y^4

Did that feel good?


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