# Algebra

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ab^2+8ab-9a

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1. ### math

Shorten fraction: (x^2+2x)/(4x+8)= ? and reduce: (8a^3*b*a^-2)/(2b)^2= ?
2. ### Algebra

Will someone please check my answers? 1. Multiply. (a^+2ab-b^2)(a^2-7ab+b^2) my answer:a^4-5a^3b-14a^2b^2+8ab^3-b^4 2. Simplify. (p^6)^2 ________ P^8 my answer:p^4 No, you got the first wrong. Recheck . Yes on second.
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Subtract and Simplify: 4a^2/(a-b)-(4b^2-8ab)/(b-a) I have the answer as 4(a+b)^2/(a-b) or should it be 4(a-b)^2/(a-b)
4. ### math check question

Subtract and Simplify: 4a^2/(a-b)-(4b^2-8ab)/(b-a) I have the answer as 4(a+b)^2/(a-b) or should it be 4(a-b)^2/(a-b) Responses Math problem check - bobpursley, Sunday, October 12, 2008 at 4:23pm just the numerator.. 4a^2-8ab + 4b^2, …
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subtract and simplify: 4a^2/(a-b)- (4b^2-8ab)/(b-a) I have the answe as 4(a-b) is this correct?
6. ### math

12ab + 8ab + 5ab is it 25ab
7. ### math

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Find the HCF 1) 7x and 9 : nothing 2) x^2(x-4) and x(x-4) : its (x-4)?
9. ### mathematics

Factorise 4ab²+8ab-16a²b
10. ### Algebra

Find the sum of (-3a+4cd-6ac)-(7ab-9cd-10ac)+(-8ab+cd-2ac)-(9ab-5cd+CD)

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