Questions on Algebra: Equations answered by real tutors!

Tutors Answer Your Questions about Equations (FREE)

Question 46842: let x represent the number and then write an expression for the product. The square of 5 more than a number.
Click here to see answer by checkley71(8403)

Question 46841: find the product
a(a+5) (a-5)
Click here to see answer by checkley71(8403)

Question 46840: find the square
(w-1/4)^2
Click here to see answer by checkley71(8403)

Question 46833: (x-10)(x+9)
Click here to see answer by checkley71(8403)

Question 46829: Remove the parentheses and simplify when possible
8d-(-7c-2d)
Click here to see answer by checkley71(8403)

Question 46843: perform the indicated divisions
x^2-2x-35/x+5
Click here to see answer by stanbon(75887)

Question 46831: subtract
4x-2x^2+4x^3 from 4x^3+x-3x^2
Click here to see answer by checkley71(8403)

Question 46851: Please show me how to solve 25x-13x=48
Click here to see answer by checkley71(8403)

Question 46828: add
5b^3-8b+2b^2 and 3b^2 -7b^3 +5b
I came up with 9b^1 - 15b^3 + 7b^2
Click here to see answer by stanbon(75887)

Question 46796: Use the discriminant to determine if the equation can be solved by factoring. If the equation can be solved by factoring, then factor it.

Click here to see answer by stanbon(75887)

Question 46838: simpify the following expression. Write your answers with positive exponents only.
(x^2)^-3(x^-2)/(x^2)^-4
Click here to see answer by adamchapman(301)

Question 46794: Solve the equation by completing the square.

Click here to see answer by atif.muhammad(135)

Question 46839: find the following squares
(7p+6q)62
Click here to see answer by consc198(59)

Question 46818: xy-z = z+wx-3x .....solving equations..slove pleasee!!
Click here to see answer by consc198(59)

Question 46908: the cost in dollars of manufacturing w wingnuts is given by the expression 0.07w and 13.3. find the cost when 375 wing nuts are made. what is the average cost to manufacture one wing nut?
Click here to see answer by tutorcecilia(2152)

Question 46907: what expression raised to the fourth power is 81x^12y^8z^16
Click here to see answer by checkley71(8403)

Question 46906: if there are 6X10^9 people on the earth and there is enough freshwater to provide each person with 8.79X10^5, how much freshwater is on the earth?
Click here to see answer by checkley71(8403)

Question 46902: find values for a,b, c, and d so that the following equations are true.
a triangle has sides 3x+7,4x-9, and 5x+6, find the polynomial that represents its perimeter.
Click here to see answer by checkley71(8403)

Question 46899: suntract using the vertical method
7x^2+6x from 9x^2-3
Click here to see answer by checkley71(8403)

Question 46891: a square has sides of length 3x-2cm. Express the area of the square as a polynomial.
Click here to see answer by checkley71(8403)

Question 46836: multiply
7w(2w-3)(2w+3)
Click here to see answer by checkley71(8403)

Question 46944: I am confused on how to solve this equation can someone help me please?
(2x-1)^2(x-5)^2 + (2x-1)^3(x-5)=0
any help will be appreciated thanks.
Click here to see answer by stanbon(75887)

Question 46951: can someone tell me how to slove this problem please?
4x/x^2+3 - 1=0
Note: x^2+3 is all under 4x...the fraction is then subtracted by 1.
please do help thanks!
Click here to see answer by stanbon(75887)

Question 46948: multiply
(x/3+3/4) (3x/4-3/5)
Click here to see answer by stanbon(75887)

Question 46898: the price of an item is given by p=2x^2-100. find the polynomial that represents the revenue generated from the sale of items.
Click here to see answer by fractalier(6550)

Question 47008: The lenght of a rectangle is 2 in. more than 8 times its width. If the area of the rectangle is 210 sq.in, find the dimensions of the rectangle.
Click here to see answer by Nate(3500)

Question 47006: solve -6(x+5)>-4x+14
Click here to see answer by Nate(3500)

Question 47005: solve 1/2(x-1)-1/4(1-x)=0

1/2= one half
1/4= one fourth
Click here to see answer by Nate(3500)

Question 47004: simplify (x^2-2x-15)/(x-5)
Click here to see answer by Nate(3500)

Question 46981: Solve the equation for the indicated variable. (Leave � in your answer, when appropriate.)
gt^2 for t
Click here to see answer by Nate(3500)

Question 47007: factor completely 10x^2y-30xy+20xy^2
Click here to see answer by tutorcecilia(2152)

Question 46979: Solve the equation.

Click here to see answer by tutorcecilia(2152)

Question 46982: Solve the equation for the indicated variable. (Leave � in your answer, when appropriate.)

Click here to see answer by venugopalramana(3286)

Question 46980: John has 24 coins in his pocket-nickels, dimes and quarters-amounting to $3.80. If he has twice as many nickels as quarters, how many dimes does he have?
Click here to see answer by venugopalramana(3286)

Question 47115: Percentage:
I have 49 apples.
38 of the apples are red.
What is the percentage of red apples?
Click here to see answer by tutorcecilia(2152)

Question 47129: Solve the equation
(1/3)^x=27
Click here to see answer by tutorcecilia(2152)

Question 47136: Property sold for $120,000, 15% more than when it was bought. What was the
original cost?
Click here to see answer by checkley71(8403)

Question 47130: Graph the function as a solid curve and its inverse as a dashed curve on the same axes.
f(x) = square root x+6

Click here to see answer by Nate(3500)

Question 47199: I think I did the first part correctly, but got stuck on what to do next..can you please help me? Thank you!
If 7x -3 = 25, then what is 2x + 9

3+3= 0
25 + 3 = 28
7x = 28
7x divided by 7 = x
28 divided by 7 = 4
Is that right so far, and what do I do next if it is?
Thank you in advance!!!!!
Click here to see answer by tutorcecilia(2152)

Question 47197: Hello, just want to make sure I showed the steps right:
3x + 5 = 2x - 9
This is what I did:
5-5 = 0
9-5 = -14
2x - 2x = x
2x - 2x = 0 x = -14 final answer Thank you!!!!!!
Click here to see answer by tutorcecilia(2152)

Question 47244: Please help having trouble.
Write the expression as a single logarithm with coefficient of 1. Assume that all variables represent positive real numbers.
2 log4 (3x - 4) + 4 log4 (6x - 5)
6 long8 (9x+9)
Click here to see answer by miguel(1)

Question 47256: Solve the equation.
(1/3)x=27
Click here to see answer by checkley71(8403)

Question 47263: Help Please

2(3x-6)+ 5(x^2-4)
Click here to see answer by checkley71(8403)

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23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 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39916..39960, 39961..40005, 40006..40050, 40051..40095, 40096..40140, 40141..40185, 40186..40230, 40231..40275, 40276..40320, 40321..40365, 40366..40410, 40411..40455, 40456..40500, 40501..40545, 40546..40590, 40591..40635, 40636..40680, 40681..40725, 40726..40770, 40771..40815, 40816..40860, 40861..40905, 40906..40950, 40951..40995, 40996..41040, 41041..41085, 41086..41130, 41131..41175, 41176..41220, 41221..41265, 41266..41310, 41311..41355, 41356..41400, 41401..41445, 41446..41490, 41491..41535, 41536..41580