Questions on Algebra: Quadratic Equation answered by real tutors!

Tutors Answer Your Questions about Quadratic Equations (FREE)

Question 260430: Hi!
Can you please help me find the product of this equation?
(-4x - 3y)(2x - 9y + 1)
I get confused on how to break this down. Should I use FOIL?
Thank you
Click here to see answer by richwmiller(9135)

Question 260426: Can you please find the x and y intercepts for f(x)=3x^2-5x-13
Click here to see answer by checkley77(12569)

Question 260417: Cany you please solve this? -0.2x^2+12x+11
Click here to see answer by checkley77(12569)

Question 260499: I need help solving for y=-3x^2-6x-5. I need to solve and find coordinates to beable to graph this. I know you substitute 0 for x and y however I get lost when I have to solve for the squared part. Thanks
Click here to see answer by dabanfield(803)

Question 260559: Could you help solve the quadratic equatin by completing the square
2x^2 - 6x + 5
Thank You,
Stacie Rihl
Click here to see answer by onlinetutor365.com(14)

Question 260559: Could you help solve the quadratic equatin by completing the square
2x^2 - 6x + 5
Thank You,
Stacie Rihl
Click here to see answer by jim_thompson5910(28536)

Question 260578: Good evening! I am not sure this is the right forum to ask this exact question, but I hope someone can answer it for me.
Find the Product of:
(4k-3)(4k^3-3k^2+4k-2)
Thank you guys!
Click here to see answer by navin2010(3)

Question 260596: 2t^2+9t+7=0
Click here to see answer by scott8148(6628)

Question 260597: v^2-9v+20=0
Click here to see answer by scott8148(6628)

Question 260600: y^2-12y=-31
Click here to see answer by richwmiller(9135)

Question 260601: I don't know where to post this, hope someone can help
p=c+b+4a solve for c
Click here to see answer by richwmiller(9135)

Question 260601: I don't know where to post this, hope someone can help
p=c+b+4a solve for c
Click here to see answer by mananth(12270)

Question 260624: 18z + 45 + z^2?

Click here to see answer by mananth(12270)

Question 260820: I need to factor 25w^2 - 121 completely.

Thanks so much for your help.

Click here to see answer by Theo(3458)

Question 260820: I need to factor 25w^2 - 121 completely.

Thanks so much for your help.

Click here to see answer by richwmiller(9135)

Question 260892: state the descriminant for x^2+3x-4
Click here to see answer by richwmiller(9135)

Question 260892: state the descriminant for x^2+3x-4
Click here to see answer by drk(1908)

Question 260821: Use the quadratic formula to solve the equation.
2x^2-3x=-10

The solution set would be?

Thanks so much for your help.
Click here to see answer by checkley77(12569)

Question 260819:
I need to factor
24-11w+w^2= ?

Thanks so much for your help.
Click here to see answer by checkley77(12569)

Question 260942: x^3-126=0
we are solving through quadratic techniques
can yo help me please?
Click here to see answer by drk(1908)

Question 260990: t^5-256t=0
I took a t out and got: t(t4-256)=0
what do i do now?
Click here to see answer by Alan3354(30993)

Question 260990: t^5-256t=0
I took a t out and got: t(t4-256)=0
what do i do now?
Click here to see answer by richwmiller(9135)

Question 260990: t^5-256t=0
I took a t out and got: t(t4-256)=0
what do i do now?
Click here to see answer by solver91311(16872)

Question 261243: A student opens a mathematics book to two facing pages. The product of the page numbers is 600. what are the two page numbers?
Click here to see answer by Alan3354(30993)

Question 261243: A student opens a mathematics book to two facing pages. The product of the page numbers is 600. what are the two page numbers?
Click here to see answer by richwmiller(9135)

Question 261216: Solve.... The solution or solutions is/are r = ________

r^2+2r-35=0

Thank you so much for your time.
Click here to see answer by Alan3354(30993)

Question 261214: Factor the trinomial completely.
a^3-5a^2-14a

Thank you so much for your help.
Click here to see answer by Alan3354(30993)

Question 261422: Maybe I'm thinking too hard. This seems easy enough but the more I think about it, the more I think I'm wrong. The question is:
'Find the equation of a quadratic function with a vertex at the point (-1,-5) that also contains the point (1,3).'
My answer is (x+1)^2-5
Am I right or at least close? I don't recall doing a problem like this is class and I haven't found one like it in my textbooks. Thanks for the help guys!
Click here to see answer by jim_thompson5910(28536)

Question 261415: The path of a baseballafter a batter hit a pop-upcan be modeled by the following function. For this functionh metres is the height and d metres is teh horizontal distanceof the ball from home plate, where it was hit.
h=-0.07(d-10)squared+8
a. What is the maximum height of the ball.
b.What was teh horizontal distance of the ball from home plate when it reached its maximum height.
c.What was the height of the ball when it was hit.
d.If the ball was caught 19.5m from home plate, how far off the ground was the infielders glove when he caught the ball, to the nearest tenth of a metre.
e. If no one had caught the ball, what would its horizontal distance from home plate have been when it hit the ground, to the nearest tenth of a metre
Click here to see answer by Logitechmath(1)

Question 261133: I have to indentify the following components of each quadratic function then graph the function.
1. y=x^2 +2x -3
axis of symmetry x= -b/2a:_____ ( i got -4, i can't remember how I got this)
vertex(-b/2a,y):______
y-intercept (c):_______
two other points:______
I am in cyber school and I can get how to do this. Please help.
Click here to see answer by ankor@dixie-net.com(15645)

Question 261507: How can I find the quadratic equation if only one solution is provided? Thanks
Click here to see answer by richwmiller(9135)

Question 261529: how is the following equation solved
z - 7z1/2 + 12 = 0
Click here to see answer by jsmallt9(3296)

Question 261524: Write the equation of the quadratic function with roots of 6 and 10, and a vertex of (8,2). HELP!
Click here to see answer by solver91311(16872)

Question 261527: The product of 2 consecutive positive even integers is 440. What are the integers?
Click here to see answer by Alan3354(30993)

Question 261620: Add.
(2x squared -7xy + y squared) + (-6x squared - 2xy - y squared) + (x squared + xy - 9y squared)
in other words:
(2x^2-7xy+y^2)=(-6x^2-2xy-y^2)+(x^2+xy-9y^2)
The answer is ?
Thank you to anyone who can possibly help me with this problem!!!!!!!!
Click here to see answer by richwmiller(9135)

Question 261736: Write the equation of the quadratic function with roots of 0 and 1, and a vertex of (-1/2,2). Thank you in advance.
Click here to see answer by ichudov(499)

Question 261736: Write the equation of the quadratic function with roots of 0 and 1, and a vertex of (-1/2,2). Thank you in advance.
Click here to see answer by stanbon(57282)

Question 261699: The equation x^2 + Bx + C = 0 has 5 as the sum of its roots and 15 as the sum of the squares of the roots. What is the value of C?
Click here to see answer by Edwin McCravy(8893)

Question 261834: 2x^2+16x=0
Click here to see answer by stanbon(57282)

Question 261896: x-y=1
x+y=3
i need a pare of quardents
Click here to see answer by solver91311(16872)

Question 261896: x-y=1
x+y=3
i need a pare of quardents
Click here to see answer by richwmiller(9135)

Question 261839: solve x^2 - 2x - 13 = 0
Click here to see answer by Stitch(352)

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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11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 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