Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 59580: Could I please get some assistance with this?
Find the roots of the expression - factor the quadratic expression completely:
6x^2 - 42x + 72
Thank you!
Click here to see answer by uma(370)

Question 59581: I can't seem to get these right - help would be appreciated:
(Not necessary to find the roots - just determine the number & type of solution) use a discriminant to determine the number of solutions for the quadratic equasions - and if the solutions are real or complex.
a. 2x^2+x-1=0
b. 4/3x^2-2x+3/4=0
c. m^2+m+1=0
Thank you very much!
Click here to see answer by funmath(2933)

Question 59583: 3x^2-7x=0
3x^2+33=2x^2+14x
(x-3)^2=9
(3x-6)^2=4x^2
Click here to see answer by funmath(2933)

Question 59437: x^2-8=0
Click here to see answer by funmath(2933)

Question 59460: 2. x+3y=-9 Question: Add -9 to both sides of Equation. Do this by adding -9 to the right side, and x+3y (Which equals -9) to the left side. The resulting equation should have only x as the variable. The y should have been eliminated.
Click here to see answer by pvaka(23)

Question 59439: (x=2)^2=16
Click here to see answer by funmath(2933)

Question 59438: (x=2)^2=16
Click here to see answer by funmath(2933)

Question 59641: Hi,
Help on this one would be greatly appreciated!
How do we find D if it is in the form ax^2 + bx = c?
D= Discrimatory
Click here to see answer by funmath(2933)

Question 59649: Can you please help me solve this problem:
Find all solutions to x^3+6x^2+11x+6=0 if x=-3is one of it's solutions.
Click here to see answer by stanbon(75887)

Question 59690: Can someone help?

Solve: 6t^4=-t^2+5
I keep getting t=radical 5/radical 6 and t=+or-I
the answer in the back of the book is t=+or-radical30/6 and t=+or-I
What am I doing wrong?
Click here to see answer by chitra(359)

Question 59714: When graphing the fallowing system the two lines are _____________.
3x+y=10
x+3y=15
a) are parallel
b) intersect at exactly 1 point
c) are the same
d) intersect at two points
e) none of the above
Click here to see answer by stanbon(75887)

Question 59821: i can never figure out word problems can you please help. thank you in advance
108. Boxing match. A boxing ring is in the shape of a square, 20 feet on each side. How far apart are the fighters when they are in opposite corners of the ring?
Click here to see answer by checkley71(8403)

Question 59823: what is a domain? and how would i figure this out? is there an easy way to solve this?? can you please help thank you very much

Determine the domain of each relation.
28. y = \/ x-2
30. y = 4-x^2

Click here to see answer by venugopalramana(3286)

Question 59849: real or imaginary solutions
84. 3y^2 + 4y � 1 = 0
Click here to see answer by funmath(2933)

Question 59982: x^2-4x+4=49
(3x-6)^2=4x^2
(x-1)^2+(x^2+1)-12=0
Click here to see answer by uma(370)

Question 59824: how do i find imaginary answers???
Find all real or imaginary solutions to each equation
78. W^2 = -225

Click here to see answer by tutorcecilia(2152)

Question 59998: solve
5xy + 2z if x = -3, y = 2 and z = -5
Click here to see answer by uma(370)

Question 59999: Find (-4ab)(-3c)
Click here to see answer by tutorcecilia(2152)

Question 60001: Find
8b(1.7f)
Click here to see answer by tutorcecilia(2152)

Question 60103: How do you solve 7y2+6=y2 and x2-1=-16
Click here to see answer by chitra(359)

Question 60104: How do you solve 4x2=96, x2-20=0, and 5(x-2)2=125
Click here to see answer by funmath(2933)

Question 60108: How do you solve these problems by using the
quadratic formula x� = 6x - 4 and
x� + 16x + 60 = 5
Click here to see answer by Edwin McCravy(20054)

Question 60245: What is the equation of the parabola that moves the parent graph of
y=x^2 down 10 units?
Click here to see answer by funmath(2933)

Question 60251: i dont know how to do it and i need to know how to do it by hand could you explain it for me thanks alot
Click here to see answer by funmath(2933)

Question 60243: The graph shows the pair of points at (-4,-2) and (-1,-1). Determine the slope of the line through the two points
Click here to see answer by tutorcecilia(2152)

Question 60273: Solve the equation
3(y-7) = y +3
Click here to see answer by funmath(2933)

Question 60270: Find 63 divided by (-9)
Click here to see answer by funmath(2933)

Question 60312: It says for each equation identify the axis of symmetry, create a suitable table of values, ans sketch the graph (including the axis of symmetry)
I got the axis of symmetry as 3. Is this right? Can you do the rest step by step for me! Thanks in advance!
ac
Click here to see answer by funmath(2933)

Question 60107: How do you complete the square of x2-8x=33 and x2-8x+40=0
Click here to see answer by checkley71(8403)

Question 60107: How do you complete the square of x2-8x=33 and x2-8x+40=0
Click here to see answer by ankor@dixie-net.com(22740)

Question 60397: Determine weather the graph of each parabola opens upward or downward.
24. y = � x^2 + 3
how do i determine which way the parabola opens?? can you please assist me??
thanks you are wounderful :)
Click here to see answer by josmiceli(19441)

Question 60382: Multiply and solve for y are the instructions.
y + 3 = 15
Please show step by step in solving the equation.
Please e-mail asap. Thank you. JC
Click here to see answer by brandonpark2889(31)

Question 60392: 94. (sqrt 7x + 29) = x+3 can you please assist me with this one . thanks your great:)
Click here to see answer by brandonpark2889(31)

Question 60394: 62. (x � 10)(x � 2) = -20 thanks for all your help, i really am trying
Click here to see answer by ptaylor(2198)

Question 60313: Can you help me graph the equation y=x^2-4x and y=-x+1
Thanks so much!
ac
Click here to see answer by tutorcecilia(2152)

Question 60446: Find the distance between the points
(0,2) and ( 3,6)
Click here to see answer by josmiceli(19441)

Question 60453: 9x-5x^2=-2
2x^2-3x=x^2+18
15x^2+x=2
x^2-6x+9=-16
Click here to see answer by asha(30)

Question 60432: Find the length of the missing side of the right triangle when one side is 35ft the other is 28ft
Click here to see answer by ptaylor(2198)

Question 60474: y=x^2+x-6
It says to find the x-intercepts? I AM SO LOST! HELP!
Thank you so much!!
ac
Click here to see answer by tutorcecilia(2152)

Question 60426: Find 150% of 28
Click here to see answer by tutorcecilia(2152)

Question 60428: please help!!
A lake is 120 fathoms deep. Use the fact that there are 6 fett in a fathom to tell the depth of the lake in feet
Click here to see answer by tutorcecilia(2152)

Question 60429: Suppose y varies inversely as X and Y = 5 when x = 20. Find x when y = 2
Click here to see answer by tutorcecilia(2152)

Question 60634: please help me solve
x/2 + 5x/10 = -2
thank you so much
Click here to see answer by uma(370)

Question 60621: please help!
Solve the equation :
6x + 5 = 23
Click here to see answer by ankor@dixie-net.com(22740)

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