Questions on Algebra: Distributive, associative, commutative properties, FOIL answered by real tutors!

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Algebra: Distributive, associative, commutative properties, FOIL

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Question 168694: Factor
r^2-1
I got
(r^2+1)(r^2-1)
Am i on the right path?
Click here to see answer by jim_thompson5910(13787)

Question 168695: Factor....Need some help
x^4-13x^2+36
Click here to see answer by Alan3354(6059)

Question 168695: Factor....Need some help
x^4-13x^2+36
Click here to see answer by ankor@dixie-net.com(6691)

Question 168693: Need help with factoring
x^2-36
i got
(x+6)(x-6)
Is this right?
Click here to see answer by Alan3354(6059)

Question 168691: Need help with factoring
y^2-6y+9
Click here to see answer by Alan3354(6059)

Question 168692: Factor
4m^2-8m+3
Click here to see answer by jim_thompson5910(13787)

Question 168699: Not understanding how to solve this type of problem...
In a right triangle one side is 1 unit longer than the other side and the perimeter is 12 feet. Find the length of the hypotenuse.
Click here to see answer by Mathtut(3670)

Question 168786: I asked the same question ealier and got an answer to try it instead of helping. Can someone please help me find what I am doing wrong.
y^2-6y+9
I got(y-3)^2 but I dont come out to the same thing when I plug in the answer I dont get the +9. I also came up with(y+3)^2 but still dont get -6y.
Click here to see answer by Electrified_Levi(103)

Question 168954: how would you solve square root -361/9
Click here to see answer by ankor@dixie-net.com(6691)

Question 168969: factor out the gcf 9x-18
Click here to see answer by jim_thompson5910(13787)

Question 168971: factor 2x^3-128
Click here to see answer by jim_thompson5910(13787)

Question 168970: factor b^6-1
Click here to see answer by jim_thompson5910(13787)

Question 169101This question is from textbook Elementary and Intermediate Algebra
: Area of a parallelogram. Find the trinomial A(x) that represents the area of a parallelogram whose base is 3x +2 meters and whose height is 2x+3 meters.
Find A(3).
Thanks!This question is from textbook Elementary and Intermediate Algebra

Click here to see answer by jim_thompson5910(13787)

Question 169362: 100 yd^2 equals how many m^2, given that 0.3048m=1ft?
Click here to see answer by Mathtut(3670)

Question 169361: If -2(x+3)^2=(x+3)(ax+b), what are a and b?
Click here to see answer by Mathtut(3670)

Question 169359: If (2x+a)(x-b)=2x^2+x-3, what are a and b? Note there are 2 solutions.
Click here to see answer by Mathtut(3670)

Question 169358: convert 100m/s into mi/hr, given that 0.3048m=1ft
Click here to see answer by Mathtut(3670)

Question 169393: How Can i write an expression that is equivalent to 3x-(4+2x) ?
Click here to see answer by gonzo(654)

Question 169489: factor:
128r^2+448r+392
Click here to see answer by checkley77(7035)

Question 169587: 49x^2-49
Click here to see answer by Mathtut(3670)

Question 169803: simplify
(1+1/x) / (1-1/x)
Click here to see answer by jim_thompson5910(13787)

Question 169795: Simplify
x^2+x-2/x^2-1
Click here to see answer by jim_thompson5910(13787)

Question 169797: simplify
x^2+2xy+y^2/x+y * x^2-y^2/x-y
Click here to see answer by jim_thompson5910(13787)

Question 169991: factor (a^(2n))-1
Click here to see answer by jim_thompson5910(13787)

Question 170178: The questions state to simplify. Please review and help me to understand where I went wrong. Thank you, Jackie
1. 2y + 3 -1/3(6x + 9y) + x
I simplified this way: 1/3(6x)=2x 1/3(9y)= 3y then 2y +3 -2x +3y +x= 2y+3y-2x+x+3= 5y+3x+3
2. 5x + 0(x +y) -3y +14 -3(y -x)
I simpified this way: 0(x)=x 0(y)=y 3(y)=3y 3(x)=3x then 5x+x+y-3y+14-3y-3x= 5x+1x-3x+1y-3y+14=3x-2y+14
Thank you for reviewing and correcting my work, Jackie
Click here to see answer by Earlsdon(4898)

Question 170735This question is from textbook algebra 2
: factor x*x*x+64This question is from textbook algebra 2

Click here to see answer by jim_thompson5910(13787)

Question 170737: Use the distributive property to remove the parentheses from the following expression:
-(5y - x - 5)
Click here to see answer by jim_thompson5910(13787)

Question 170773: (a+2b)(a+3b)
Click here to see answer by jim_thompson5910(13787)

Question 170783: can you please help me with this math equation? (x^2-y^2)(x^2+y^2)
Click here to see answer by jim_thompson5910(13787)

Question 170967: Please help me solve this problem by using the distrubutive property:
5(x-3)+4(x+3)=3(x-1)
Click here to see answer by jim_thompson5910(13787)

Question 170967: Please help me solve this problem by using the distrubutive property:
5(x-3)+4(x+3)=3(x-1)
Click here to see answer by Mathtut(3670)

Question 171357: -41 + 5x= 99
5x = 140
What was done to each side of the first equation to arrive @ the second?

Click here to see answer by jim_thompson5910(13787)

Question 171466: How do I solve this equation?
9+3/x-3=x/x-3
Click here to see answer by stanbon(26259)

Question 171463: Multiplication of Rational Expression. Can someone help me understand this complicated stuff?
x^2/x^2-4 * x^2-5x+6/x^2-3x
I think I have to cancell out some things like the x square before I start. Right?
Click here to see answer by Alan3354(6059)

Question 171488: How do I divide? Do I cancell out first?
fraction 1: 12-4x/x^2-1
divided by
fraction 2: 9-x^2/x^2+4x+3

Click here to see answer by monika_p(55)

Question 171486: What are the steps to determine the restricted values?
x^2-4x-21/x^2+16
Click here to see answer by Mathtut(3670)

Question 171490: Can I please get help dividing this? I tried it a few times and keep getting confused.
x^3+125/x^3-125 divided by x^2-5x+25/x-5
Click here to see answer by Mathtut(3670)

Question 171490: Can I please get help dividing this? I tried it a few times and keep getting confused.
x^3+125/x^3-125 divided by x^2-5x+25/x-5
Click here to see answer by monika_p(55)

Question 171487: How do I simplify?
x^2-16/-8-2x
Click here to see answer by Mathtut(3670)

Question 171465: Simplify:
2y^3-6y^2-8y/4y^3-8y^2-32y
Step by step, how do I simplify this. Thanks!
Click here to see answer by jim_thompson5910(13787)

Question 171485: How do I determine the restricted values?
x-8/x^2-x
Click here to see answer by solver91311(5072)

Question 171485: How do I determine the restricted values?
x-8/x^2-x
Click here to see answer by monika_p(55)

Question 171484: Determine the resticted value(s). How do I go about doing so?
8x/x-4
Click here to see answer by nerdybill(2446)

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