Homework Help: math

Posted by anonymous on Thursday, August 21, 2008 at 5:16pm.

Please check.

(-6m^2n+3mn^2-5mn+2)+(4m^2n+2mn^2-6mn-9)
Answer: -2m^2n+5mn^2-11mn-7

(2x^4-3x^2+7x)-(5x^3+2x^2-3x+5)
Answer: 2x^4-5x^3-5x^2+10x-5

(a-8)(a-1)
Answer: a^2-9a+8

(z+6)^2
Answer: z^2+12z+36

(5x+2y)^2
Answer: 25x^2+20xy+4y^2
Is that order okay? Does it matter?

(2x-7)(2x+7)
Answer: 4x^2-49

math - Infinity_plus_one, Friday, August 22, 2008 at 1:44am
I've already answered your post on Thursday, August 21, 2008 at 9:54pm.

Answer this Question

Related Questions

math - Please check. (-6m^2n+3mn^2-5mn+2)+(4m^2n+2mn^2-6mn-9) Answer: -2m^2n+5mn...
Algebra - Can someone check my algebra answers and help me with the problems I ...
Math - Can someone please check my answers below for accurateness? The ...
Algebra - Please let me know if I answered these correctly. thank you, #2. Add: ...
Intermediate Algebra - Am I going in the right track? 8x -1/x + 5x - 3/2x = 16x^...
Algebra - I'm not sure how to solve these problems. Simplify (3xsquare - 2x)...
Urgent Math please check - Very Important I can get someone to check these for ...
Linear Equations - Can you check these thanks. Linear Equations Directions: ...
Math33333 - Please help me! Problem: x+2 x-3 _________ - _________ 2x^2+5x+2 2x^...
Polynomial- Doublecheck2 - I asked this earlier, but I didn't get an answer...

For Further Reading

First Name:
School Subject:
Answer: