# Algebra

posted by .

This might sound a bit dumb but am really stuck :L

i need help to answer a question and i need someone to explain to me how to do it
Multiply out the brackets and collect the terms.
(2y-3)(ysqaured + 4y -1)

• Algebra -

Multiply the stuff in the second set of parentheses by 2y to obtain:
y^2*2y + 4y*2y -1*2y = 2y^3+8y-2y

Then multiply the same stuff by -3 as I did above, and collect terms.

## Similar Questions

1. ### math

When simplifying a rational fraction, why do you need to factor the numerator and the denominator?
2. ### someone help

my post is still on this page as algebra, could someone elaborate on what bobpursley tried to help me with. See your original post. I am guessing you are referring to your question 5)Simplify:(5x-4)^2 and your answer= 25x^2 - 16 (5x-4)^2 …
3. ### English

Can someone use the word myriad in a sentence?
4. ### Algebra

Hi, would it be possible for a bit of guidance on the following question?
5. ### Algebra

Hi, here is a question and my answer I have done so far, not sure about the end result so any help appreciated 5a-2 (5+4a)=-9 Multiply out brackets 5a-10+8a =-9 Add 10, 5a+8a=1 Collect like terms 13a = -9 Divide by 13 = a =1/13 I am …
6. ### Chemistry

Hi, This may sound like a dumb question but I am stuck. I have worked out everything from a titration and I am now trying to work out my overall % purity. It is 86.0% +/- 1.3% What will 86.0% + 1.3% be and what will 86.0% - 1.3% be?
7. ### math

I need help solve the equation by fractions 8/(21-y) = 12/(y+19) I think the answer is y = 5, i just need to know how to do work out. i done some solution like this first multiply by(21-y)(y+19)(assuming that y = 21 and y = 19: (21-y)(y+19)8/(21-y) …
8. ### Math

(4.44e-2 - x) (8.06e-2 - x) / (0.331 + 2x)^2 = 1.80e-2 I need to rearrange this equation so that I can get a,b, and c, for the quadratic equation but I am not sure how to do this. Thank you for the help. Math(Please answer, thank you) …
9. ### Algebra 2

Okay so for the question I'm posting has a pic with it but idk how I can attach it so you guys can see it because I know you'll need it to help me out cause I've been stuck on this question for awhile so please any kind of help would …
10. ### Algebra 2

Okay so for the question I'm posting has a pic with it but idk how I can attach it so you guys can see it because I know you'll need it to help me out cause I've been stuck on this question for awhile so please any kind of help would …

More Similar Questions