Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 781449: Solve (u-4)^2-18=0 where u is a real number.
Simplify your answer as much as possible.
Click here to see answer by fcabanski(1391)

Question 781625: Solve the quadratic equation by completing the square. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.)
4x2 + 10x − 16 = 0
Click here to see answer by Alan3354(69443)

Question 781637: how do i solve 2(x-3)^2-2=16 by taking square roots?
Click here to see answer by Alan3354(69443)

Question 781819: X^2-4x+c=0. I have to use discriminant.
Click here to see answer by MathLover1(20849)

Question 781837: How do you solve for x:
x/2+10=x-3
Click here to see answer by Alan3354(69443)

Question 782806: if a^2 + 1 = a, then the value of a^12 + a^6 + 1 is
Click here to see answer by psbhowmick(878)

Question 782863: How do you use the square root procedure to solve the equation 2(x+3)^-18=0?
Click here to see answer by oscargut(2103)

Question 783374: What is the nth term of the following sequence?
1/4 , 1,2 1/4, 4,6 1/4
Click here to see answer by solver91311(24713)

Question 783863: a park in the shape of a rectangle has dimensions 60m by 100m.If the park contains a rectangular garden enclosed by a concrete terrace,how wide is the terrace if the area of the garden is one-half the area of the park?

Click here to see answer by josgarithmetic(39613)

Question 783865: It is desired to have an open bin with a square bottom,rectangular sides,and a height of 3m.If the material for the bottom costs $5.40 per square meter and the material for the sides costs $2.40 per square meter and the material for the sides costs $2.40 per square meter,what is the volume of the bin that can be constructed for $63 worth of material?
Click here to see answer by josgarithmetic(39613)

Question 784564: 1. Given the following quadratic equation, find
a. the vertex
b. the axis of symmetry
c. the intercepts
d. the domain
e. the range
f. the interval where the function is increasing, and
g. the interval where the function is decreasing
h. Graph the function. y = -x^2 + 2x + 8

Click here to see answer by solver91311(24713)

Question 785227: Hi there,
This problem isn't exactly quadratic equation, but it is part of a group of problems we are assigned working up to quadractic equations.
In this problem, we need to determine the value or values of d that complete the square for the expression:

I set it up as:
(d/2)^2=(+/-)sqrt(9/4)

and solved to get d(+/-)sqrt(9/4)
All of our homework is online and for some reason it's not accepting that answer. I was wondering if you could explain what I did wrong?
Thank you so much!
Click here to see answer by jim_thompson5910(35256)

Question 785392: A small square pool is surrounded by a concrete walk two meters wide. If the area of the pool is 2/3 of the total area of the pool and the walk, find the outer dimensions of the walk.
Click here to see answer by KMST(5328)

Question 785390: Please help me solve this... Cant figure it out.
A small square pool is surrounded by a concrete walk two meters wide. If the area of the pool is 2/3 of the total area of the pool and the walk, find the outer dimensions of the walk.
Click here to see answer by KMST(5328)

Question 785460: Please i need your help in solving this equation 2 - 3 ( a + 5 ) = -10
Click here to see answer by harpazo(655)

Question 785476: Please help me to solve this quadratic equation
Click here to see answer by Trontor(4)

Question 785483: it takes 15 days for mang ambo to harvest a crop.what part of the crop was harvested for x days.pls. po

Click here to see answer by stanbon(75887)

Question 785528: I need to solve this, I was given two initial equations y=x^2-x-2 and y=x+2
here's how far I got
x^2-x-2=x+2
x^2-2x-4=0
(x+__)(x-__)
HELP
thanks!

Click here to see answer by xinxin(76)

Question 785572: how do you solve (3x-2)(x+5)=0 by factoring?
Click here to see answer by harpazo(655)

Question 785666: solve using the zero product property

(t+11)(t-5)=17
Click here to see answer by xinxin(76)

Question 785666: solve using the zero product property

(t+11)(t-5)=17
Click here to see answer by waynest(281)

Question 785549: The perimeter of a rectangle is 30 m. If one side is x, express the area of the rectangle in terms of x. Show that there is no value of x such that the area is 60m^2.

Thanks
Click here to see answer by KMST(5328)

Question 785854: how do you evaluate the following expression, and write the fin al answer in standard form?
(4 x 10^2)(1 x 10^3)(5 x 10^4)
Click here to see answer by Alan3354(69443)

Question 785934: Please i need help in solving this quadratic equation 3(5c - 1) = 4(3c + 2)
Click here to see answer by 1998Baby(63)

Question 786042: Please i have tried to solve this equation but i did not get it so i really need help 5(3m + 4) = 3(4m +7)
Click here to see answer by josgarithmetic(39613)

Question 786049: Please i need help in solving this equation 2(2x - 5) = 3(x - 6)
Click here to see answer by stanbon(75887)

Question 786200: How do you set up the problem for (x+4)(x-9)=4x, I know that I need to subtract 4x from each side to set the problem to 0 but I do not know what to do after that. Do I distribute the -4x to (x+4) and then factor out the - and then solve for x?

Click here to see answer by stanbon(75887)

Question 786276: Hi there tutors, I have a question that I don't know how to do. This is the equation : 5(x-3)^2+8.
I have to find:
1. The maximum or minium point.
2. The equation of the line of symmetry or the equation of the axis of symmetry.
3. The value of x at which the maximum or minimum of the axis of symmetry.
4. The x co-ordinate of the minimum or maximum point.
5. The range of the function
6. The maximum or minimum value.
7. The y co-ordinate of the maximum or minimum point.
Sorry if it seems like to much and thanks to whomsoever in advance.

Click here to see answer by KMST(5328)

Question 786277: Use the square root property 4x^2 � 9x � 7 = 0
Click here to see answer by josgarithmetic(39613)

Question 786515: which values are solutions to the inequality below?
check all that apply.
X squared > 36
a. 0
b. 6
c. 7
d. -15
e. -6
f. -3
Click here to see answer by MathLover1(20849)

Question 786540: Solve the quadratic equation by using the square root property.
9x^2+5=194
Click here to see answer by dfollett76(12)

Question 788409: The perimeter of a rectangular wading pool is 172 meters and its area is 1800 square meters. How do I find the length and width of the pool using a quadratic equation.
Click here to see answer by solver91311(24713)

Question 788407: Help, please! How do I graph this quadratic equation?
y = (x+3)^2 - 9

and also y = (x-2)^2 ?
Do I make a table of y values and plug them in for x? I keep getting the wrong answers on my online homework :( I have a test tomorrow. Please help! Thank you!
Click here to see answer by solver91311(24713)

Question 788412: How do I graph y=(x+3)^2-9? Since I don't have a middle coefficient...?
Click here to see answer by wilft1(217)

Question 788323: if the roots of one less than twice a number to the square of the number is 5/9. find the number. please help me how to solve this.
Click here to see answer by ankor@dixie-net.com(22740)

Question 788639: Find the x intercept of these parabola by completing the square
a)y=x^2-4x+1
b)y=2x^2-12x-7
Can you please help me out? Thanks so much in advance:)
Can you please show all the steps it would really help me understand better thank you:)
Click here to see answer by waynest(281)

Question 788642: Find the equation of the parabola with a vertex at (2,-12) that passes through (0,0)
Can you please help me out? Thanks so much in advance:)
Can you please show all the steps it would really help me understand better thank you:)
Click here to see answer by josgarithmetic(39613)

Question 788873: In a test your strength booth at a fair you strike a pad with a hammer. This projects a weight up a vertical slide. A bell rings if you have hit the pad hard enough . When the pad is struck with just sufficient force to ring the bell the height h in metres of the weight r seconds after the pad is struck is given h = 8t-4.9r^2.
a) How high is the weight 0.5 seconds after the pad is struck?
b) How high is the bell?
Can you please help me out? Thanks so much in advance:)
Can you also please show the steps it would really help me understand:) Thank-you
Click here to see answer by stanbon(75887)

Question 788852: A and B are riding bicycles on perpendicular roads. Suppose that A is 9 km from the intersection and riding toward it at 20 kph, and B is 7 km from it and riding away from it at 25 kph. After how many hours will they be 13 km arart?
Click here to see answer by Alan3354(69443)

Question 788868: Question:
Buried treasure. Ahmed has half of a treasure map,which indicates that the treasure is buried in the desert 2x + 6 paces from Castle Rock. Vanessa has the other half of the map. Her half indicates that to find the treasure, one must get to Castle Rock, walk x paces to the north, and then walk 2x + 4 paces to the east. If they share their information, then they can find x and save a lot of digging. What is x?

On your scratch paper, draw a diagram which includes the location of Castle Rock and the dimensions of a triangle with the given number of paces. Seeing the relationship of the sides and where the right angle is will help you know how to apply the Theorem. You may include the diagram in your paper but are not required to do so.
Write the equation first by inserting the given binomials into the Pythagorean Theorem. Once you have your equation written, solve it using one of the methods of factoring. Show all steps.

Click here to see answer by KMST(5328)

Question 788965: A quadratic function has its vertex at the point (0,1) . The function passes through the point (5,-8) . Find the quadratic and linear coefficients and the constant term of the function.
The quadratic coefficient is ______
The linear coefficient is _______
The constant term is ______

Click here to see answer by josgarithmetic(39613)

Question 789041: Please ma/sir help me to find the quadratic equation whose roots are given x= 1/2 and -2/3
Click here to see answer by nerdybill(7384)

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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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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