Questions on Algebra: Quadratic Equation answered by real tutors!

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Question 144939: The length of a rectangle is 8 feet longer than its width, which has the same dimension as the side of a square. If the area of the rectangle is equal to 160 square feet more than the area of the square, what are the length and width of the rectangle?
(Draw a diagram.)
Click here to see answer by solver91311(24713)

Question 145093: which of the following is a step in the solution of the given equations?
x^2+y^2=65
(1/2)xy=14
a. x+y=121
b.x^2-11x+28=0
c.x^2+2xy+y^2=79
d.11+-(121+112)^(1/2)
---------------------
2

Click here to see answer by vleith(2983)

Question 145133: solve the following using the quadratic formula
x^2+6x+1=0
4x^2-12x+9=0
Click here to see answer by solver91311(24713)

Question 145128: Plot the graphs of the following functions.
f(x)=(1/2)x
Click here to see answer by checkley77(12844)

Question 145127: Plot the graphs of the following functions.
f(x)=3x - 2

Click here to see answer by checkley77(12844)

Question 145366: Plot the graphs of the following functions
f(x)=6x

Click here to see answer by jim_thompson5910(35256)

Question 145367: Plot the graphs of the following functions
f(x)= log2x
Click here to see answer by jim_thompson5910(35256)

Question 145389: can someone please help me solve by using the quadratic formula:
4r^2+4r=7 and 6x^2+53x=6x-35
Click here to see answer by jim_thompson5910(35256)

Question 145126: Plot the graphs of the following functions.
f(x)=6x
Click here to see answer by checkley77(12844)

Question 145405: Solve
Click here to see answer by jim_thompson5910(35256)

Question 144785: Determine whether the following equations have a solution or not? Justify your answer.
m2 + m + 1 = 0

Click here to see answer by stanbon(75887)

Question 145443: which choice is equivalent to the fraction below? Hint: rationalize the denominator and simplify.
2-2√2/2+2√2
a. 1-√2
b. -3+2√2
c. 2+√2
d. 2-√2
Click here to see answer by edjones(8007)

Question 145484: solve the inequality -2(3+x)<4x+4<8x. Give the result in set notation and graph it.

Click here to see answer by Edwin McCravy(20054)

Question 145521: If f(x)=2x^2-7x+3 find f(2) and find f(-3)
Click here to see answer by jim_thompson5910(35256)

Question 145522: x^2+7x+10=0
3x^2-6x=0
Click here to see answer by jim_thompson5910(35256)

Question 145458: Please find the -y intercept
x intercepts if any
vertex
and line of symetry of the following quadratics.

1.

2.

3.
Click here to see answer by Alan3354(69443)

Question 145463: please subtract the following rational expressions

x+2 6
--- - ---
x-4 x-4

x^2 -1
--- - ---
x-1 x-1

4x+y 2x-2y
---- - -----
2x+3y 2x+3y

-3 2-x
--- - ---
x-5 x-5
Click here to see answer by checkley77(12844)

Question 145577: In your industrail oven, you bake two baking sheets with 12 scones each, two baking sheets with 20 cookies each, and one baking sheet with 2 scones and 10 cookies. Write an expression that illustartes the total cost of all baked goods in the scenario above using the variable s to represent the cost of scones and the variable c to represnt the cost of cookies. Simplify your expression by combining like terms.
Click here to see answer by stanbon(75887)

Question 145612: factor x^2+7x+10=0
Click here to see answer by jim_thompson5910(35256)

Question 145660: 8cm
12cm
Click here to see answer by Alan3354(69443)

Question 145804: This is a verbal question that has to do with Quadratic Equations.
Suppose 5 bales of hay are weighed 2 at a time in all possible ways. The weights in pounds are 110, 112, 113, 114, 115, 116, 117, 118, 120, and 121. How much does each of the 5 bales weigh?
I'd appreciate any help with this problem. Thanks.
Click here to see answer by scott8148(6628)

Question 146017: x^2+5x + 6 = 0
solve using the quadriatic equation
Click here to see answer by ankor@dixie-net.com(22740)

Question 146024: The width of a rectangular gate is 2 meters larger than its height. The diagonal brace measures square root of 6 meters. Find the width and height.
Click here to see answer by nerdybill(7384)

Question 146048: 2x+3=4x^2
Click here to see answer by nerdybill(7384)

Question 146179: -m2+3m+4=0
Click here to see answer by stanbon(75887)

Question 146209: When the parabola: intersects the x-axis at one point, then a must equal ___ or ___.
What I've got so far, (not a lot unfortunately):

and here I become unstuck. No use of graphics calculator permitted. Much thanks for any help!

Click here to see answer by oscargut(2103)

Question 146210: how to solve this one 3(2w)-[w-z-(w+z)]? please show the solution :D thanyou.
Click here to see answer by checkley77(12844)

Question 146222: Factor: 4p^2 - 8p - 60
Click here to see answer by nabla(475)

Question 146238: Factor Completely : 12b^3 - 86b^2 + 14b
Click here to see answer by Earlsdon(6294)

Question 146236: Factor each Polynomial: 3a^3 + 3ab^2 + 2(a^2)b + 2b^3
Click here to see answer by scott8148(6628)

Question 146211: Factor : x^2 - 8xy + 12y^2 = (x -2y)(x -6y) Is this correct?
Click here to see answer by scott8148(6628)

Question 146364: I have to use the factoring method, solve for the roots this quadric equation and have to place the equation in standard form before factoring... Can you please help me? I don't get it at all. Thank you...:)
Page575
Number 14
x^2 + 3x - 40 = 0
Click here to see answer by scott8148(6628)

Question 146365: Using the factoring method, solve for the roots of this quadric equation and be sure to place the equation in standard form before factoring... Can you help? Thanks:)
Page 575
Number 20
x^2 = 10x - 24
Click here to see answer by scott8148(6628)

Question 146366: Using the factoring method, solve for the roots of this quadric equation and be sure to place the equation in standard form before factoring...Can you please help me? Thanks :).
Page 575
number 24
p^2 + 15p + 25 = 6p + 5

Click here to see answer by scott8148(6628)

Question 146363: I have to write in standard form and determine the values of a,b, and c. CAn you please help me?
Page 575
Number 6
3x^2 + 10x + 8 = -17x - 2
Click here to see answer by Earlsdon(6294)

Question 146362: I have to write in standard form and determine the values of a,b, and c. Can you help me?
Page 575
Number 4
4x^2 + 20x = 0
Click here to see answer by aswathytony(47)

Question 146530: (r^8t^7)^-7
Click here to see answer by stanbon(75887)

Question 146569: I have to solve using the quadric formula and if there are no real roots , say so. Can you please help me?
Page 588
Number 8
x^2 + 9x + 7 = 0
Click here to see answer by Alan3354(69443)

Question 146571: I have to solve using the quadric formula and if there are no real roots say so...Can you please help me? Thanks...:)
Page588
Number 14
3 = 7x - 4x^2
Click here to see answer by Alan3354(69443)

Question 146572: I have to sove using the quadric formula and if there are no real roots say so...Please help me ands thanks...:)
Page 588
Number 20
3x^2 - 4x + 2 = 0
Click here to see answer by Alan3354(69443)

Question 146570: I have to solve using the quadric formula and if there are no real roots say so. Can you help me please?
Page 588
Number 10
3x^2 + 7x - 6 = 0
Click here to see answer by Alan3354(69443)

Question 146616: If each side of a square is lengthened by 4m, the area becomes 49m^2.Find the length of a side of the original square
Click here to see answer by Fombitz(32388)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 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