# Questions on Algebra: Polynomials, rational expressions and equations answered by real tutors!

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 Algebra: Polynomials, rational expressions and equations Solvers Lessons Answers archive Quiz In Depth

 Question 92031: Business and Finance. THe price of an item is given by p=2x^2 - 100. Find the polynomial that represents the revenue generated from the sale of x items. Click here to see answer by stanbon(57307)

 Question 92029: For each of the following problems, let x represent the number and then write and expression for the product. The square of 5 more than a number. Click here to see answer by stanbon(57307)

 Question 91801: Social Science: If there are 6 X 10^9 people on the Earth and there is enough freshwater to provide each person with 8.79 X 10^5 L, how much freshwater is on the Earth? Click here to see answer by scott8148(6628)

 Question 92028: Find each of the following products a(a + 5)(a - 5) Click here to see answer by tutorcecilia(2152)

 Question 91800: In 1975 the population of the Earth was approximately 4 billion and doubling every 35 years. The formula for the population P in year Y for this doubling rate is P(in billions)=4 X 2^(y-1975)/35 Social Science:WHat will the population of the United States be in 2025 if this growth rate continues? Click here to see answer by scott8148(6628)

 Question 92026: Find each of the squares (7p + 6q)^2 Click here to see answer by tutorcecilia(2152)

 Question 91959: Business and finance. The cost in dollars of manufacturing w wing nuts is given by the expression 0.07w + 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 91797: Business and Finance. The revenue, in dollars, when x pairs of shoes are sold is given by 3x^2-95. 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 ankor@dixie-net.com(15649)

 Question 92027: Find each of the squares (w - 1/4)^2 Click here to see answer by tutorcecilia(2152)

 Question 92030: Geomatry. A square has sides of length 3x -2 cm. Express the area of the square as a plynomial. Click here to see answer by tutorcecilia(2152)

 Question 92102: Find the values that make the rational expression undefined. Click here to see answer by funmath(2925)

 Question 92083: Could you help me to solve this X+3/2 - x-8/6 = 3 Thank you. James Click here to see answer by ankor@dixie-net.com(15649)

 Question 91958: What expression raised to the fourth power is 81x^12y^8z^16? Click here to see answer by ankor@dixie-net.com(15649)

 Question 92025: Perform the indicated divisions x^2 - 2x - 35/ x + 5 Click here to see answer by anraymer(35)

 Question 92120: write each rational expression in lowest terms.state all the values for which the denominator of the original problem would be undefined. y^2+2y-3/y^2-3y+2 Click here to see answer by stanbon(57307)

 Question 92127: write each rational expression in lowest terms.state all the values for which the denominator of the original problem would be undefined. (x+4)(x-3)/(x+5)(x+4) Click here to see answer by anraymer(35)

 Question 92130: write each rational expression in lowest terms.state all the values for which the denominator of the original problem would be undefined. 36m^4n^3/24m^2n^5 Click here to see answer by anraymer(35)

 Question 92024: DIVIDE 7x^5 *y^5 - 21x^4* y^4 + 14x^3 *y^3/ 7x^3 *y^3 Click here to see answer by anraymer(35)

 Question 92180: Hello I am not sure how to go about this. If the sides of a square are decreased by 3cm, the area is decreased by 81cm^2. What were the dimensions of the original square. I am thinking (x-3)^2=a-81cm^3, but where do I go from here? Click here to see answer by Earlsdon(6287)

 Question 92164: Perform the indicated divisions x^2 - 2x - 35/ x + 5 Click here to see answer by jim_thompson5910(28593)

 Question 92208: products of binominals. (3x-4)(6x+2) first the 3x(6x) then 3x(2) 2nd -4(6x) then -4(2) to get =18x^2+6x-24x-8 then the 6x(3x) then 6x(-4) next 2(3x) and 2(-4) =18x^2-24x+6x-8 i get lost at this point. this problem from a review sheet i have not from a book. do i simplify 18x^2-24x+6x-8? do i -24x+6x=-18x then i am left with 18x^2-18x-8 is this correct? Click here to see answer by jim_thompson5910(28593)

 Question 92225: write result in scientific notation (6 x 10^12)(3.2 x 10^8)/ (1.6 x 10^7)(3 x 10^2) Click here to see answer by stanbon(57307)

 Question 92163: Write your result in scientific notation (6 x 10^12)(3.2 x 10^8)/ (1.6 x 10^7)(3 x 10^2) Click here to see answer by checkley71(8403)

 Question 92128: find all the values that make the rational expression undefined. 9y+8/y Click here to see answer by stanbon(57307)

 Question 91370: WORD PROBLEM - SOLVE THE FOLLOWING POLYNOMIAL EQUATION Show by counterexample that (x+y)^-2 and x^-2 + y^-2 are not equivalent. Click here to see answer by mathispowerful(115)

 Question 92220: What is the quotient when x^4 - 4x^2 + 7x +15 is divided by x+4 Click here to see answer by jim_thompson5910(28593)

 Question 92256: Can you please help me with these problems I would appreciate it. These questions are from rational exponents and exponent and logarithmic equations. Solve for x: 9^x=3 Solve for x: 2^9x-4=32 Express as a product: log3, 4over the rational sign,x Solve for x: log10exponent of 7=log10exponent of x-log10exponent of 2 Thank you so much Chocolatechrrys Click here to see answer by stanbon(57307)

 Question 92272: ADD Using vertical method 5x^2 + 2x - 4, x^2 - 2x -3, and 2x^2 - 4x - 3 Click here to see answer by checkley71(8403)

 Question 92273: Simplify each of the following expressions. Write your ansewers with positive exponents only. (x^2)^-3(x^-2)/ (x^2)^-4 Click here to see answer by checkley71(8403)
 Question 92273: Simplify each of the following expressions. Write your ansewers with positive exponents only. (x^2)^-3(x^-2)/ (x^2)^-4 Click here to see answer by Earlsdon(6287)

 Question 92166: Divisions 8x^3 - 6x^2 + 2x/ 4x + 1 Click here to see answer by ankor@dixie-net.com(15649)

 Question 92315: I cant seem to solve this problem. I am not sure how to get the answer. Factor the trinomial completely. could you please show how to solve the problem correctly. Click here to see answer by ankor@dixie-net.com(15649)