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

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Question 170783: can you please help me with this math equation? (x^2-y^2)(x^2+y^2): 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(9403)

Question 170773: (a+2b)(a+3b): (a+2b)(a+3b)
Click here to see answer by jim_thompson5910(9403)

Question 170737: Use the distributive property to remove the parentheses from the following expression:
-(5y - x - 5): Use the distributive property to remove the parentheses from the following expression:
-(5y - x - 5)
Click here to see answer by jim_thompson5910(9403)

Question 170735This question is from textbook algebra 2
: factor x*x*x+64This question is from textbook algebra 2
: factor x*x*x+64
Click here to see answer by jim_thompson5910(9403)

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: 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 Alan3354(1449)

Question 169991: factor (a^(2n))-1: factor (a^(2n))-1
Click here to see answer by jim_thompson5910(9403)

Question 169797: simplify
x^2+2xy+y^2/x+y * x^2-y^2/x-y: simplify
x^2+2xy+y^2/x+y * x^2-y^2/x-y
Click here to see answer by jim_thompson5910(9403)

Question 169795: Simplify
x^2+x-2/x^2-1: Simplify
x^2+x-2/x^2-1
Click here to see answer by jim_thompson5910(9403)

Question 169803: simplify
(1+1/x) / (1-1/x): simplify
(1+1/x) / (1-1/x)
Click here to see answer by jim_thompson5910(9403)

Question 169587: 49x^2-49: 49x^2-49
Click here to see answer by Mathtut(570)

Question 169489: factor:
128r^2+448r+392: factor:
128r^2+448r+392
Click here to see answer by checkley77(3654)

Question 169393: How Can i write an expression that is equivalent to 3x-(4+2x) ?: How Can i write an expression that is equivalent to 3x-(4+2x) ?
Click here to see answer by gonzo(474)

Question 169358: convert 100m/s into mi/hr, given that 0.3048m=1ft: convert 100m/s into mi/hr, given that 0.3048m=1ft
Click here to see answer by Mathtut(570)

Question 169359: If (2x+a)(x-b)=2x^2+x-3, what are a and b? Note there are 2 solutions.: 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(570)

Question 169361: If -2(x+3)^2=(x+3)(ax+b), what are a and b?: If -2(x+3)^2=(x+3)(ax+b), what are a and b?
Click here to see answer by Mathtut(570)

Question 169362: 100 yd^2 equals how many m^2, given that 0.3048m=1ft?: 100 yd^2 equals how many m^2, given that 0.3048m=1ft?
Click here to see answer by Mathtut(570)

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
: 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!
Click here to see answer by jim_thompson5910(9403)

Question 168970: factor b^6-1: factor b^6-1
Click here to see answer by jim_thompson5910(9403)

Question 168971: factor 2x^3-128: factor 2x^3-128
Click here to see answer by jim_thompson5910(9403)

Question 168969: factor out the gcf 9x-18: factor out the gcf 9x-18
Click here to see answer by jim_thompson5910(9403)

Question 168954: how would you solve square root -361/9: how would you solve square root -361/9
Click here to see answer by ankor@dixie-net.com(4538)

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. : 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(89)

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.: 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(570)

Question 168692: Factor
4m^2-8m+3: Factor
4m^2-8m+3
Click here to see answer by jim_thompson5910(9403)

Question 168691: Need help with factoring
y^2-6y+9: Need help with factoring
y^2-6y+9
Click here to see answer by Alan3354(1449)

Question 168693: Need help with factoring
x^2-36
i got
(x+6)(x-6)
Is this right?: Need help with factoring
x^2-36
i got
(x+6)(x-6)
Is this right?
Click here to see answer by Alan3354(1449)

Question 168695: Factor....Need some help
x^4-13x^2+36: Factor....Need some help
x^4-13x^2+36
Click here to see answer by ankor@dixie-net.com(4538)

Question 168695: Factor....Need some help
x^4-13x^2+36: Factor....Need some help
x^4-13x^2+36
Click here to see answer by Alan3354(1449)

Question 168695: Factor....Need some help
x^4-13x^2+36: Factor....Need some help
x^4-13x^2+36
Click here to see answer by jim_thompson5910(9403)

Question 168694: Factor
r^2-1
I got
(r^2+1)(r^2-1)
Am i on the right path?: 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(9403)

Question 168615This question is from textbook algebra 1
: -13=2b-b-10
13=5-13+3aThis question is from textbook algebra 1
: -13=2b-b-10
13=5-13+3a
Click here to see answer by midwood_trail(260)

Question 167893: Use FOIL to multiply:
(3x – 8)(x – 7)
Help!!!: Use FOIL to multiply:
(3x – 8)(x – 7)
Help!!!
Click here to see answer by jim_thompson5910(9403)

Question 167895: Help! I am lost.
(5x2 – 3x + 2) + (-3x2 + 9x – 8) – (x2 + 3x – 10): Help! I am lost.
(5x2 – 3x + 2) + (-3x2 + 9x – 8) – (x2 + 3x – 10)
Click here to see answer by checkley77(3654)

Question 167628: How do you use the Distributive property to write an expression as an
equivalent expression
example:6(n+5) or -2(k+8) please help thank you: How do you use the Distributive property to write an expression as an
equivalent expression
example:6(n+5) or -2(k+8) please help thank you
Click here to see answer by gonzo(474)

Question 167566: Factoring a Difference of Two Squares
Factor each polynomial.
16. 9a2 – 64b2
: Factoring a Difference of Two Squares
Factor each polynomial.
16. 9a2 – 64b2

Click here to see answer by sowmya(18)

Question 167065: A five digit number is represented by ABCDE where each letter represents a digit. If we add the digit 1 in front of ABCDE, we get 1ABCDE. The product of 1ABCDE and 3 is the six digit number ABCDE1. Find the value of the original number ABCDE: A five digit number is represented by ABCDE where each letter represents a digit. If we add the digit 1 in front of ABCDE, we get 1ABCDE. The product of 1ABCDE and 3 is the six digit number ABCDE1. Find the value of the original number ABCDE
Click here to see answer by ankor@dixie-net.com(4538)

Question 166970This question is from textbook mathematics 1
: (3-b)6This question is from textbook mathematics 1
: (3-b)6
Click here to see answer by midwood_trail(260)

Question 166934: help me with this problem
a^3+2abc-2c^2 for a=3, b=9, and c=-2: help me with this problem
a^3+2abc-2c^2 for a=3, b=9, and c=-2
Click here to see answer by checkley77(3654)

Question 166366: Find the product.
(x - 4y)(5x - 9y): Find the product.
(x - 4y)(5x - 9y)
Click here to see answer by MRperkins(77)

Question 166366: Find the product.
(x - 4y)(5x - 9y): Find the product.
(x - 4y)(5x - 9y)
Click here to see answer by jim_thompson5910(9403)

Question 166456: Name the Property.
a: 6+1*2=1*2+6
b: (7x)*y=7(xy)
c: 0+a=a
d: 2(x+3)=2x+2*3
e: 1/2(8*5)=(1/2*8)*5
f: 1*(-2/3)=-2/3: Name the Property.
a: 6+1*2=1*2+6
b: (7x)*y=7(xy)
c: 0+a=a
d: 2(x+3)=2x+2*3
e: 1/2(8*5)=(1/2*8)*5
f: 1*(-2/3)=-2/3
Click here to see answer by stanbon(19020)

Question 166161: Factor completely:
x2 – 15wy + 3xy – 5wx
: Factor completely:
x2 – 15wy + 3xy – 5wx

Click here to see answer by ptaylor(1332)

Question 166160: Factor completely:
2x3 – 26x2 + 80x
: Factor completely:
2x3 – 26x2 + 80x

Click here to see answer by checkley77(3654)