Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 279246: I am in desperate need of help on this problem.
x^1/2-4x^1/4=-3
Click here to see answer by Earlsdon(6294)

Question 279267: Please help me fill in the blanks.
x^2 + 2/3x + [(2/3)/2]^2 = (x + ____)^2
----
x^2 + (2/3)x + (1/3)^2 = (x+(1/3))^2
=============================================
Cheers,
Stan H.
Click here to see answer by stanbon(75887)

Question 279250: sqrt(2x+1)=sqrt(x)=1
Please help I am stumped on this one.
Click here to see answer by Alan3354(69443)

Question 279299: Lee can frame a cabin in 4 and 4/5 days less than Ron. When they work together, they will do the job in 4 days. How long would each of them take to frame the cabin alone?
Click here to see answer by josmiceli(19441)

Question 279384: Write a quadratic equation with the solutions (-3,1) in the form of ax^2+bx+c=0.
I thought it was x^2-4x+3=0.
I don't think this is right, can someone show me what I am doing wrong? Please!
Click here to see answer by richwmiller(17219)

Question 279553: Please help me. The problem is this, Write a quadratic equation having the given numbers as solutions. 3, -8
Click here to see answer by richwmiller(17219)

Question 279558: Hello, I need help with a couple of problems. I am totally lost!
y= x^2 + 2x and y = x^2 + 8x + 16 Any help would be greatly appreciated!
Click here to see answer by richwmiller(17219)

Question 279568: I need help please. Sarah Comar's Candy Store sold a total of 53 pounds of jelly beans, selling two kinds of jelly beans. The first kind was priced at $4.45 per pound, and the second was priced at $1.12 per pound. In all, $125.96 was taken in for the two types of jelly beans. How many pounds of each kind were sold? ( Let x represent the number of pounds of the first kind and y the number of pounds of the second.
Click here to see answer by josmiceli(19441)

Question 279599: The lenght of a rectangle is twice its width with an area of 2yds^2.
I got that (L)(w)=area
and L=2w
(2x)(x)=2yds^2
This is where I get confused. Can someone help me out?
Click here to see answer by stanbon(75887)

Question 279624: need help solving negative b+ or minus square root of b squared - 4ac over 2a
Click here to see answer by Theo(13342)

Question 279556: Can someone help me please. The problem is Complete the square. Then write the trinomial square in factored form. x^2 -2/5x
Click here to see answer by richwmiller(17219)

Question 279649: how to solve x^2+5x=36
Click here to see answer by Inkyvoyd(17)

Question 279649: how to solve x^2+5x=36
Click here to see answer by richwmiller(17219)

Question 279622: (3x)(3x)+5x-12=0
Click here to see answer by richwmiller(17219)

Question 279661: i must solve this by completing the square. 3x^2-6x=27 how do you do this
Click here to see answer by scott8148(6628)

Question 279734: How would I find the x-intercepts for the quadratic equations:
6x^2 - 7x + 2 = 0
5x^2 � 21x + 4 = 0
4x^2 � 3x - 1 = 0

Click here to see answer by stanbon(75887)

Question 279665: what are the product of the roots of the equation ax^2+bx+c=0. im not sure how this is done
Click here to see answer by josmiceli(19441)

Question 279662: solve using the quadriatic formula. im not sure how to go about this. please help if possible thanks 5x^2-3x-3=0
Click here to see answer by jim_thompson5910(35256)

Question 279761: I would appreciate any help that you give me on this problem. I am to complete the square. the problem is
.4T^2 =.7T = .3T - .2
Click here to see answer by Fombitz(32388)

Question 279772: I am having difficulty on this problem. Any help that you could provide would be appreciated.
directions are: solve the equation by completing the square.
x^2 + 3x - 1 = 0
Thanks, Mike
Click here to see answer by Fombitz(32388)

Question 279934: If a right triangle has sides of 12 and 5, what is the hypotenuse side equal to?
If a right triangle has a hypotenuse side equal to 13 and one side equal to 5 what is the other side?

Click here to see answer by stanbon(75887)

Question 279938: What number(s) is forbidden (undefined) for x to be for:

(2x^4 + 4x) divided by (x^3 + 27)

Click here to see answer by richwmiller(17219)

Question 279940: Solve by any method

4x2 � 7x + 5 = 0

Click here to see answer by richwmiller(17219)

Question 279880: please help me solve this equation step by step
if you could, could you please use quadratic formula?
ive tried and plugged all the numbers into the quadratic formula, somehow it isnt working unless im doing it wrong.
Please help.
thank you
Click here to see answer by checkley77(12844)

Question 279875: a certain number added to its square is 30.find the number
Click here to see answer by checkley77(12844)

Question 279872: (x+3)(x+1)-y(x+1) factors to (x+4)(x+3-y)
Is it true or false?
Click here to see answer by checkley77(12844)

Question 279957: I'm not sure how to solve a particular problem using the quadratic formula
Click here to see answer by checkley77(12844)

Question 279999: Quadratic equations may be solved by graphing, using the quadratic formula, completing the square, and factoring. What are the pros and cons of each of these methods? When might each method be most appropriate? Which method do you prefer? Explain why.

Click here to see answer by jsmallt9(3758)

Question 280183: Evaluate the following
f(x) = x + 4
f(5) =

Click here to see answer by richwmiller(17219)

Question 280184: Evaluate the following
f(x) = 6x + 5
f(12) =
f(�1/2) =
f(0) =

Click here to see answer by JBarnum(2146)

Question 280185: Solve by completing the square
x2 + 6x � 4 =0
Click here to see answer by richwmiller(17219)

Question 280192: Solve by any method

25x2 + 9 = 0

Click here to see answer by JBarnum(2146)

Question 280200: If a right triangle has sides (or legs) of 7 and 24, what is the hypotenuse side equal to? (Pythagorean Theorem)
Click here to see answer by rfer(16322)

Question 280195: What is the area of a rectangle that has sides of (x+4) and 2(x+3)? Simplify
Click here to see answer by JBarnum(2146)

Question 280202: Solve by any method

x2 � 2x = 8

Click here to see answer by JBarnum(2146)

Question 280188: Solve by any method
x2 � 2x = 8

Click here to see answer by richwmiller(17219)

Question 280180: Solve by using quadratic formula x2 + 2x � 4 = 0
Click here to see answer by jim_thompson5910(35256)

Question 280209: Solve by using quadratic formula x2 � 3x - 10 = 0
Click here to see answer by jim_thompson5910(35256)

Question 280209: Solve by using quadratic formula x2 � 3x - 10 = 0
Click here to see answer by richwmiller(17219)

Question 280212: Solve by any method

x2 + 6x �1 = 0

Click here to see answer by jim_thompson5910(35256)

Question 280212: Solve by any method

x2 + 6x �1 = 0

Click here to see answer by richwmiller(17219)

Question 280190: Solve by any method

(x � 3)(2x + 2) = -15

Click here to see answer by solver91311(24713)

Question 280216: Solve by any method

(x � 3)(2x + 2) = -15
Click here to see answer by solver91311(24713)

Question 280213: If a right triangle has a hypotenuse side equal to 16 and one side equal to 9 what is the other side?
Click here to see answer by JBarnum(2146)

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