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Tutors Answer Your Questions about Distributive-associative-commutative-properties (FREE)
Question 131316: I've been multiplying polynomials however, the solution that I come up with for the product of these three, doesnt match the answer I was given. Could you please rectify my solution. Thank you.
(2y+1)(y+z)(3y-1)=(2y^2+2yz+y+z)(3y-1)
=6y^3+6y^2z+3y^2+3yz-2y^2-2yz-y-z
=6y^3+6y^2z+y^2+yz-y-z
The solution I was given was 6y^3+13y^2+y-z, which is correct?
Click here to see answer by solver91311(17077)   |
Question 135123:
Please help me simplify the equation 1/2(3a+1) - 1/3(a-5). I can not make heads or tails out of putting likes togehter, removing parenthesis. As you can tell, algebra is my nightmare course! Please help me! Thank you!!!
Click here to see answer by checkley77(12569) |
Question 138045: How do you factor these equations:
x(squared) + 3x -4 =
y(squared) + 13y - 48=
And how would you solve these equations:
(x-3) (x-7)= 0
b(squared) + 3b - 4= 0
n(squared) + n - 12= 0
5x (squared) + 18x = 8
3a (squared) + 4a = 2a(squared) - 2a - 9
Click here to see answer by stanbon(57962) |
Question 139923: when u are doing distributive property ,once you distribute do you do the parentheses first then multiply your answer times the number out of the parentheses ,or just that number or do you multiply the number outside of the parenthese times the first number in the parentheses then the second?
thanks for your help
Click here to see answer by checkley77(12569) |
Question 139924: when u are doing distributive property ,once you distribute do you do the parentheses first then multiply your answer times the number out of the parentheses ,or just that number or do you multiply the number outside of the parenthese times the first number in the parentheses then the second?
thanks for your help
Click here to see answer by ptaylor(2052)  |
Question 140939: Which do you think pays more: 4.25% simple interest for 3 years or 4% interest compounded semi-annually for the same amount of time? Explain.
Please help with this question because this is so confusing!!!!!!!!!!!!
Click here to see answer by stanbon(57962) |
Question 143384: The problem is x(x+1)squared(x+2)=0; 0, -1, 2.
Sorry I dont know how to make an exponent on the computer. I am supposed to use the 0, -1, and 2. to determine by substitution which of the given numbers, if any satisfy the equation. So far I have getting that -1 and 0 work! I have a question about my work though. Am I supposed to distribute the x first or foil first? Thanks so much for your time! Tarah
Click here to see answer by solver91311(17077) |
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