Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 147428: Solve using the square root property:
2x^2 � 35 = 15

Click here to see answer by oscargut(2103)

Question 147469: Let's put an equation with that curve. Use y = x2-8x+7
a. What is the value of the discriminant? Review Lesson 3.05.
b. What types of roots will this equation have? Ex: two complex roots, one repeated root, two real rational roots or two real irrational roots? Review Lesson 3.05.
c. Find the roots by factoring and solving. Review Lesson 3.04.
d. Find the roots by using the quadratic equation. Review Lesson 3.04.
e. Find the roots by graphing and using the tracking tool.
Click here to see answer by vleith(2983)

Question 147529: 3ax^2 - 12a^2x^4 / 3ax^2
Click here to see answer by stanbon(75887)

Question 147520: If h(x) = f(x) � 3, what would the new coordinates of P be after the shift? Give answer in (x, y) form
If what would the new coordinates of P be after the reflection? Give answer in (x, y) form.

Click here to see answer by stanbon(75887)

Question 147538: I don't understand this particular question. It says to solve by the method that's easiest to me, but all the methods are difficult for me. The problem is 3x^2=2x+5.
Click here to see answer by jim_thompson5910(35256)

Question 147535: It says to use the quadratic formula to solve. The problem is 2x^2-3x+1=0
Please help me, Thank You=)
Click here to see answer by jim_thompson5910(35256)

Question 147534: Write the equation 9x(x-6)=-45 in quadratic form and solve it by factoring
Click here to see answer by jim_thompson5910(35256)

Question 147564: What does it mean to find the vertex, intercepts, and sketch of y=-x2-6x+1?
Click here to see answer by jim_thompson5910(35256)

Question 147576: The members of a flying club plan to hare equally the cost of a $2000,000 airplane. The members want to find five more people to join the club so tha the cost per person will decrease by $2000. How many members are currently in the club?
Click here to see answer by stanbon(75887)

Question 147609: Write the equation 7 x(x - 15) = - 252 in quadratic form and then solve it by factoring
Click here to see answer by jim_thompson5910(35256)

Question 147587: Solve for the roots of the quadratic equation:
(3x^2-7x)/2=3
I would try to show work....but i don't know where to start...please help...i need to know this for a test tomorrow!!!!
Click here to see answer by scott8148(6628)

Question 147614: X^2-7x-1=-7
I have been having trouble with this problem can you help me?
Click here to see answer by jim_thompson5910(35256)

Question 147669: Thank you in advance for helping me set up this problem. I have tried several different says to isolate the square root but it is not working for me.
The problem is 6x-19sqrtof x -7=0.
in the end I come up with 36x^2-445x+49 but do not know what to do next, if that is even correct. Any help wwould be appreciated. E.
Click here to see answer by scott8148(6628)

Question 147705: (1/16)^-3/4
Click here to see answer by stanbon(75887)

Question 147259: Solveand check each of the following for X:
A: (x/12)-(1/6)=[(2x-7)/12]
B: [5/(x+6)]+[2/(x^2+7x+6)]=[3(x+1)]
Click here to see answer by Electrified_Levi(103)

Question 147578: In how many ways can you arrange the digits 8, 7, 6, and 3 to form a four-digit number divisible by 9, using each digit once and only once?
Click here to see answer by Edwin McCravy(20054)

Question 147835: What does it mean when it says "find the quadratic equation where f(1)=2 and the maximum value of f is f(3)=-5"?
Click here to see answer by Fombitz(32388)

Question 147996: Multiply the fraction:
[8x(y^5)/5x^3(y^2)] . [15y^2/16x(y^3)]
Click here to see answer by jim_thompson5910(35256)

Question 148002: The longer leg of a right triangle is 1cm longer than the shorter leg and the hypontenuse is 5cm, then what are the lengths of the leg?
Click here to see answer by Alan3354(69443)

Question 148007: If the product of two consecutive even intergers is 34 larger than their sum, then what are the intergers?
Click here to see answer by jim_thompson5910(35256)

Question 148007: If the product of two consecutive even intergers is 34 larger than their sum, then what are the intergers?
Click here to see answer by ankor@dixie-net.com(22740)

Question 148012: The hypontenuse of a right triangle is 15 meters. If one leg is 3 meters longer than the other, then what are the lengths of the legs?
Click here to see answer by Alan3354(69443)

Question 148013: One side of a rectangular stage is 2 meters longer than the other.If the diagonal is 10 meters, then what are the lenghths of the sides?
Click here to see answer by nerdybill(7384)

Question 147995: Solve and check for X :
[5/(x+6)]+[2/(x^2+7x+6)]+[3/(x+1)]
Click here to see answer by orca(409)

Question 146360: I cannot understand how to do these type of questions at all...Can you please help me and thanks:)
Page 575
Number 2
I have to write in standard form and determine the values of a,b, and c....
x^2 + 6x - 5 = 0

Click here to see answer by orca(409)

Question 148073: A rectangular field is fenced in by using a river as one side . If 2500 m
of fencing are used for the 720,000-m2 field , what are its dimensions?

Click here to see answer by oscargut(2103)

Question 148177: 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 thier information, then they can find x and save a lot of digging. What is x?
Click here to see answer by josmiceli(19441)

Question 148240: Please help me solve this equation:
Click here to see answer by Edwin McCravy(20054)

Question 148290: I need help with this problem that is for a quadratic unit but I have no idea how to solve it.
((2t)^(-4))-((5t^(-2))+2=0
Thanks
Click here to see answer by Alan3354(69443)

Question 148462: Find all the errors in the following solution to an equation:
7/x = 8/x+3 +1
7(x+3) = 8x + 1
7x + 3 = 8x
-x = -3
x= 3

Click here to see answer by stanbon(75887)

Question 148476: Factor completely.
4x^2 -11x + 6
I keep getting -10x as my middle number.
Click here to see answer by scott8148(6628)

Question 148463: After leaving Moose Jaw, Hanson drove 200km at x km/hr and then decreased his speed by 20km/hr and drove 240 additional kilometers. Make a table expressing these facts. Write a rational expression for x=100.
Click here to see answer by ankor@dixie-net.com(22740)

Question 148575: How do u solve for the solutions in the problem
x^2-4x=-8

Click here to see answer by mangopeeler07(462)

Question 148580: How do u solve for the solutions in the problem
x^2-4x=-8

Click here to see answer by Fombitz(32388)

Question 148603: please can you graph y=x2-8x+6 thanks
Click here to see answer by vleith(2983)

Question 148665: Hello. Please and I mean Please, help me know how to find the y value in a parabola. The y value should either be the highest or the lowest point in a positive or negative curved u. Thank you very much for your time in helping me solve this question.
Click here to see answer by Edwin McCravy(20054)

Question 148667: Find the vertex of quadratic equation f(x) = 2x^2 + 4x-9
(2x squared plus 4x minus 9)
This is what I have so far until I get lost:
step one: y= 2x^ + 4x - 9
step two: y+9=2x^2 +4x
step three:y+9=2(x^2 +2x)
(half of 2=1 ; (1)^2 =1
Not sure where to go after this. thanks!

Click here to see answer by stanbon(75887)

Question 148717: Find the slope-intercept from the equation of the line passing through the points (2,-4) and (4,6)
Click here to see answer by nerdybill(7384)

Question 148733: I have to solve the equation using the Indian method which is: a) Move the constant to the right of the equation, b) multiply each term by 4 times the coefficient of the x^ term, c) Square the coefficient of the x term and put it on both sides of the equation, d) take the square root of both sides, e) set the left side of the equation equal to the positive sqrt of the number on the right side - solve for x, and f)set the left side of the equation equal to the negative sqrt of the number on the right side - solve for x. I am stumped!!!
The equation is: x^ + 12x - 64 = 0
Please help, Ellen
Click here to see answer by stanbon(75887)

Question 148718: Please, I need your help me with this problem.
Find the slope, y-intercept, and sketch the graph of the equation 4x + y = 0
Click here to see answer by Fombitz(32388)

Question 148729: The problem is to solve the quadratic equation using the Indian method of multiplying each term in the equation by four times the coefficient of the
x sqrt 2 term.
The equation is: x^ - 2x - 13 = 0
I am totally stumped. Please help.
Ellen
Click here to see answer by oscargut(2103)

Question 148716: Please help, I need help with this problem
For the following function g (x) find g (-2) then graph the function

g (x) = {
3x + 5 x < -2
x + 2 x > -2

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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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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