Questions on Algebra: Evaluation of expressions, parentheses answered by real tutors!

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Question 8442: This is a quadratic equation: y%5E2%2B8y=0. Help please? I got it wrong.
Click here to see answer by drglass(89) About Me 

Question 8436: I need some help with this problem: x%5E4-4x%5E2%2B3.Thanks.
Click here to see answer by drglass(89) About Me 
Question 8436: I need some help with this problem: x%5E4-4x%5E2%2B3.Thanks.
Click here to see answer by khwang(438) About Me 

Question 8434: Ok, some of these types of problems, for example 3x%5E4-81x, I understand, but in 16a%5E4-2a, I don't get it. I know you're supposed to factor out the GCF, but I'm lost. Help would be very appreciated.
Click here to see answer by drglass(89) About Me 
Question 8434: Ok, some of these types of problems, for example 3x%5E4-81x, I understand, but in 16a%5E4-2a, I don't get it. I know you're supposed to factor out the GCF, but I'm lost. Help would be very appreciated.
Click here to see answer by khwang(438) About Me 

Question 8433: I am having a bit of trouble with factoring by grouping. The problem is: 4a%5E2x%2B2a%5E2y-6bx-3by Thanks for the help ahead of time!
Click here to see answer by drglass(89) About Me 

Question 8432: I am having some trouble with factoring by grouping. a%5E2b%2B3a%5E2%2B2b%2B6.Help please? Thank you.
Click here to see answer by drglass(89) About Me 

Question 8430: I am having trouble with factoring by grouping.This is the problem: ab%2B7b-3a-21. Could you please help me out? Thanks.
Click here to see answer by drglass(89) About Me 

Question 8427: The problem on my homework says: Find all factors of 6x%5E2%2B14x-12+.
Help please? Thanks.

Click here to see answer by drglass(89) About Me 

Question 8455: Please help me to factorize the following:
(x+5)^2 - 4(x+5)

Click here to see answer by drglass(89) About Me 
Question 8455: Please help me to factorize the following:
(x+5)^2 - 4(x+5)

Click here to see answer by Earlsdon(6294) About Me 

Question 8439: A bit of help, please? It's x%5E3-2x%5E2-4x%2B8. Thank you!
Click here to see answer by Earlsdon(6294) About Me 
Question 8439: A bit of help, please? It's x%5E3-2x%5E2-4x%2B8. Thank you!
Click here to see answer by khwang(438) About Me 

Question 8426: I am having difficulty factoring trinomials, could you please help me with this problem?
+16b%5E2%2B10b-21+
Thanks ahead of time.

Click here to see answer by Earlsdon(6294) About Me 

Question 8435: I'm just checking for accuracy here... the equation is x%5E6%2By%5E6.
My answer was %28x%5E3-y%5E3%29=(x^3+y^3)(x+y)(x-y). Is this correct?
Thank you.

Click here to see answer by rapaljer(4671) About Me 

Question 8705: when Y=6

5y or y+19

Click here to see answer by kryng88(1) About Me 

Question 8820: I am helping my son who is in the 4th grade, they are evaluating expressions. Can you help me with this:
(84 divided by z)- 6 for z = 7
and
(48 divided by h) x 2 for h = 8

Click here to see answer by Earlsdon(6294) About Me 

Question 9063: how do i solve this problem step by step?
{[18-2*6]-[40/(17-9)]}+{48-13*3+[(50-7*5+2]}

Click here to see answer by longjonsilver(2297) About Me 

Question 9091: which unit multiplier would you use to convert 200ft. to inches? (the asnwers are....3ft.over 1yd., 1ft.over 12in., 12in.over 1ft,or none of these.)
Click here to see answer by longjonsilver(2297) About Me 

Question 9089: 3x+1=16 (The answers are... 3,4,5, or none of these)thank you very much
Click here to see answer by longjonsilver(2297) About Me 

Question 9090: please help me solve this problem: convert 37&1/2 to a reduced fraction. (The answers are...3/6,3/8.75/2, or none of these.)
Click here to see answer by longjonsilver(2297) About Me 

Question 9265: -6 to 2nd power and (-6)to the 2nd power equal explain
Click here to see answer by rapaljer(4671) About Me 

Question 9238: (-3)-(-9)= the possibilites are.....-12, 12, -6,or 6
Click here to see answer by DWL(56) About Me 

Question 9480: HOW TO SOLVE THIS PROBLEM?
7a x 9b

Click here to see answer by rapaljer(4671) About Me 

Question 9588: Please help me evaluate the expression...
3 + 4[9-6 {2-5)]
step by step answer would be really appreciated.
Thank you!

Click here to see answer by thecampusnerd(13) About Me 

Question 9600: What does the following mean?
XIX 19

Click here to see answer by thecampusnerd(13) About Me 
Question 9600: What does the following mean?
XIX 19

Click here to see answer by kiwi(1) About Me 
Question 9600: What does the following mean?
XIX 19

Click here to see answer by Needhelp911(2) About Me 

Question 9798: 27*3(15+5)=
Click here to see answer by huntingmaster325(15) About Me 

Question 10125: jane buys 5 pencils and 2 rubbers for 74 pence and her brother alan buys 2 pencils and one rubber for 31 pence. if each pencil costs x and each rubber costs y , write down a pair of simultaneous equations and solve them to find the cost of the pencil and rubber.
5x+2y=74

Click here to see answer by bonster(299) About Me 

Question 10495: If you could, please help me with these 2 problems.
The directions says to simplify the variable expressions.
(-14)(-y^2)
and
8(-y^2)^2

Click here to see answer by mathmaven53(29) About Me 

Question 10795: Please help me simplify the following expression by combining like terms....step by step instructions would be great!
3x(2x-3)+5(2x-3)

Thank you

Click here to see answer by rapaljer(4671) About Me 

Question 10914: -(x+1)=2(3x-1)
Click here to see answer by kinupanda(9) About Me 

Question 11035: Please help me solve the following problem in detail. I am trying to help my daughter and I am the worst at algebra.
6x-4(3x-2)=10

Click here to see answer by longjonsilver(2297) About Me 

Question 11770: use the variable expression 3x-1.
evaluate the expression when x=-3,-2,-1,0,1,2,and 3.

Click here to see answer by elima(1433) About Me 

Question 12065: Please solve 4-1/x=4x. How do we get the answer x=1/2?
Click here to see answer by longjonsilver(2297) About Me 

Question 12151: Here's a question for you to solve and it has given me trouble. Here'a the problem 1/2k-3=2-3/4k
Click here to see answer by i dont like math(2) About Me 

Question 12260: can u please solve this 7n thank u
Click here to see answer by rapaljer(4671) About Me 

Question 12268: I have to use grouping symbols to make each equation true. I don't remember how to do it.
Example: 6 + 8 / 4 x 2 = 7 ( / is divide)
4 / 3 = 1 x 2 = 2
5 + 4 x 3 - 1 = 18

Click here to see answer by Bluidangel(2) About Me 

Question 13072: what do i do to disstrebuet a neg like 7x-2(x-4y)
Click here to see answer by rahman(247) About Me 

Question 13077: what do i do to disstrebuet a neg like 7x-2(x-4y)
Click here to see answer by rahman(247) About Me 

Question 13705: (8x+2y)-(5x+4y)
Click here to see answer by LilSkittleMd(119) About Me 

Question 14174: I'm trying to help my daughter with this problem and we both come up with different answers.
-6x+3(4x-1)=9 What is X

Click here to see answer by askmemath(368) About Me 

Question 14333: -4x-5x+30=70
Click here to see answer by LilSkittleMd(119) About Me 

Question 14737: hi i need some help please 3a+7b-10b+6c=
Click here to see answer by rahman(247) About Me 

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