Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 23670: Hi, I am really having a hard time analyzing this one, I hope someone could help me on this and I would really really appreciate it so much.
Question 1 : Explain a sequence of steps that can be used to solve any quadratic equation in the QUICKEST WAY.
Question 2 : Derive the quadratic formula used in solving quadratic equations.
Click here to see answer by Earlsdon(6288)

Question 23682: how would you graph the following fuctions?
1) y=1/2(x-3)2 +1
and y=-(x+4)2 -5 ?
Click here to see answer by rapaljer(4667)

Question 23797: Suppose that the length of a certain rectangle is 2 cm more than three times its width. If the area of the rectangleis 56 square centimeters, find its length and width.
Click here to see answer by Paul(988)

Question 23779: Please help me solve the following quadratic equation. Find the vertex and intercepts for quadratic function, and graph:
Click here to see answer by stanbon(57415)

Question 23801: The combined area of a square and a rectangle is 64 square centimeters. The width of the rectangle is 2 cm more than the length of a side of the square and the length of the rectangle is 2 cm more than its width. Find the dimensions of the square and the rectangle.
thanks a lot.. i'll really appreciate it if someone answered this one..
thanks again..

Click here to see answer by venugopalramana(3286)

Question 23814: Help me find the SQRT(49x^10)thank you.
Click here to see answer by arunpaul(104)

Question 23815: Here is another one,
5/SQRT(8)
Click here to see answer by AnlytcPhil(1278)

Question 23811: please help???
find the product
(2t+5)(3t-4) and (4x-1)^2

Click here to see answer by arunpaul(104)

Question 23875: last one ,
Factor completely
x^2+16=8x
Click here to see answer by Earlsdon(6288)

Question 23873: Factor completly
3x^2-18x-48
Click here to see answer by Earlsdon(6288)

Question 23813: Simplify
(-20^5b^13)/(5a^4b^14)
Click here to see answer by mrslong(1)

Question 23871: factor completely
y^2+yt-12t^2
Click here to see answer by Alwayscheerful(414)

Question 23939: Solve the equation
(b+17)/(b^2 –1) – 1/(b+1) = (b-2)/(b-1)

Click here to see answer by longjonsilver(2297)

Question 23939: Solve the equation
(b+17)/(b^2 –1) – 1/(b+1) = (b-2)/(b-1)

Click here to see answer by AnlytcPhil(1278)

Question 23937: Perform the indicated operation
[(a-4)/5] / [(a^2 – 16)/3]

Click here to see answer by longjonsilver(2297)

Question 23943: It says solve the proportion
9/4 = (2x+1)/(x+2)
Click here to see answer by AnlytcPhil(1278)

Question 23948: Please help me I have two more problems left and I am have a tough time answering them both here is one
Factor out the greatest common factor (GCF)
3y^5 + 15y^3 – 9y^4 + 5y^2

Click here to see answer by rapaljer(4667)

Question 23947: find the quotient and remainder (if there is one)

(w^3 + 2w^2 – 3) / (w – 2)
Click here to see answer by elima(1433)

Question 23932: Solve the proportion
9/4 = (2x+1)/(x+2)
Click here to see answer by elima(1433)

Question 24019: Solve this: please give me a step by step solution.
Click here to see answer by longjonsilver(2297)

Question 24046: -1/5x-8=4x=3
Click here to see answer by longjonsilver(2297)

Question 24065: the greater of two consecutive integers is 10 less than twice the smaller?
find the integers.
Click here to see answer by Paul(988)

Question 24062: I am learning basically how to graph quadratic equations. I dont really understand how to find the coordinates of the vertex. I also dont understand how to write an equation of the axis of symmetry. Can you please help me?
Click here to see answer by AnlytcPhil(1278)

Question 24085: I need to solve this equation by factoring. x^3+5x^2-6x=0? So far, i have (x^2-?)(x+?), but i don't quite understand the factoring part for this equation. Please help.
Click here to see answer by rapaljer(4667)

Question 24105:
Click here to see answer by rapaljer(4667)

Question 24148: can i please get the answer to this7/4+(-1/3)
Click here to see answer by queenofit(120)

Question 24204: how do you plot the table?
Click here to see answer by elima(1433)

Question 24310: 5=6/x+2
Click here to see answer by elima(1433)

Question 24374: I am taking college Algebra for the first time and since math has always been my worst subject I need all the help I can get. I thank you in advance for all your help.
Using the quadratic equation x squared -4x-5=0, perform the following tasks:
Solve by factoring: (I got x=5 or x=1)
Solve by completing the square:
Solve by using the quadratic formula:
I submitted this before but never recieved an answer back. I think I may have submitted it wrong. Again thank you for your help. BTW this is all part of the first question.
Click here to see answer by yhtong(11)

Question 24419: vertex standard form?
1. y=x^2-4x-5 ?put this function in the form y=a(x-h)+k.

2. What is the line of symmetry?

3. Graph th function using the equation in part a, explain why it is not necessary to plot points to graph when using y=a(x-h)^+k? Explanation of graphing?
4. In a few sentances describe how this graph compares to the graph of y=x^?
Click here to see answer by mathnuts(1)

Question 24446: The length of a rectangle is 4 m more than the width. The area of the rectangle is 45 m(squared). find the length and width.
Click here to see answer by Paul(988)

Question 24521: Please show me how to solve this problem by completing the square.
Click here to see answer by Earlsdon(6288)

Question 24534: Totally lost with quadratic equations, can you please show me how to solve
(x-4)^2 = -81
I have been through the book and notes several times and cannot figure out which method to use.
Thank you in advance for your help.
Click here to see answer by longjonsilver(2297)

Question 24533: These quadratic equations are kicking my rear, please help. How do I find the Vertex and intecepts of:
y = -x^2 + 6x -11
Thanks
Click here to see answer by longjonsilver(2297)

Question 24566: Please show me step by step how to solve the following quadratic equation:
(x-6)^2 = 10
Thanks
Click here to see answer by Earlsdon(6288)

Question 24543: suppose you throw a basebal straight up at a velocity of 64 ft per second.A funtion can be created by expressing distance above the ground, s , as a function of time, t. this function is (< 16 represents 1/2 g,gravitational pull in ft per second^2.
v0is the inital velocity in ft per second
so is intial distance above ground in ft. if you are stading on the ground , then s0= zero.
what is the function descibing this problem?
how high above the ground will the ball be after one sec?
how long will it take to hit the ground?
what is the maximum height and time attained by the ball?

Click here to see answer by Earlsdon(6288)

Question 24591: Randy is building a fence at the side of his warehouse. He has 120 m of fencing and plans to use the side of the warehouse as one side of the rectangular fenced area. What are the dimensions of the maximum area Randy can enclose?
* I REALLY NEED HELP WITH THIS>.its due tomorrow
Click here to see answer by josmiceli(9697)

Question 24645: for the eqation x-square root of x=0 solve for values of x,then graph y=x and y=square root of x
Click here to see answer by quentin252(19)

Question 24655: Suppose you travel north for 35 kilometers then travel east 65 kilometers. How far are you from your starting point?
How do you solve an equation like this?
Click here to see answer by josmiceli(9697)

Question 24570: Can you please help me do this problem? I have no example in my book.
2(x-1)squared=-16
Click here to see answer by stanbon(57415)

Question 24742: How do i solve by using the quadratic formula of x2 - 4x - 5 = 0
Click here to see answer by Alwayscheerful(414)

Question 24740: how do i Solve by completing the square of x2 - 4x - 5 = 0
Click here to see answer by rapaljer(4667)

Question 24750: 3) Suppose you throw a baseball straight up at a velocity of 64 feet per second. A function can be created by expressing distance above the ground, s, as a function of time, t. This function is s = -16t2 + v0t + s0
• 16 represents 1/2g, the gravitational pull due to gravity (measured in feet per second2).
• v0 is the initial velocity (how hard do you throw the object, measured in feet per second).
• s0 is the initial distance above ground (in feet). If you are standing on the ground, then s0 = 0.
a) What is the function that describes this problem?
b) The ball will be how high above the ground after 1 second?
c) How long will it take to hit the ground? What is the maximum height of the ball? What time will the maximum height be attained?
Click here to see answer by rapaljer(4667)

Question 24772: I need to be able to explain how Pythorean Theorem works in my own words to my math class. I understand it but I'm not sure how to explain it to other people. Can you help me?
Click here to see answer by longjonsilver(2297)

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