Questions on Algebra: Evaluation of expressions, parentheses answered by real tutors!

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Question 1009537: The polynomial equation x(x2+4)(x2-x-6)=0 has how many real roots?
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Question 1009544: If x2+2x=3, then x could equal
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Question 1009655: 2x-3y=16 where x=3y+11 Have tried 2x-3y+3y+11=16 2x+11-11=16-11 2x=5 but answer cannot be fraction what am I doing wrong here should I solve the problem 2x-3y=16 first then answer would be = -3

Click here to see answer by addingup(3677) About Me 
Question 1009655: 2x-3y=16 where x=3y+11 Have tried 2x-3y+3y+11=16 2x+11-11=16-11 2x=5 but answer cannot be fraction what am I doing wrong here should I solve the problem 2x-3y=16 first then answer would be = -3

Click here to see answer by Edwin McCravy(20060) About Me 

Question 1009629: 70-30=40-
50-10=60-
60-10=70-

Click here to see answer by fractalier(6550) About Me 

Question 1010307: How many three digit numbers can be formed using the digits 1,2,3,4,5,6, if repetitions are not allowed?
Click here to see answer by ikleyn(52832) About Me 

Question 1010459: Evaluate the sum:
7
E(3x-1)
x=5
Thanks in advance!

Click here to see answer by fractalier(6550) About Me 

Question 1010609: Please help me solve this. write an expression for the phrase. fifteen less than six times the square of x
i think it is: 15-6x but idk

Click here to see answer by MathLover1(20850) About Me 
Question 1010609: Please help me solve this. write an expression for the phrase. fifteen less than six times the square of x
i think it is: 15-6x but idk

Click here to see answer by MathTherapy(10555) About Me 

Question 1010807: (i+1)
-----
(i+5)
It asks to simplify this expression.

Click here to see answer by josgarithmetic(39623) About Me 

Question 1010843: Faktor dari 3x^2-4x-8=0

Click here to see answer by Edwin McCravy(20060) About Me 

Question 1010900: The length of a rectangle is three more than twice the width. The perimeter is 42 inches. Write an equation that can be used to find the length and width of the rectangle. What is the width and length of the rectangle? Please help.
Click here to see answer by fractalier(6550) About Me 

Question 1011151: Which polynomial is equal to open parentheses 4 x squared minus 3 x minus 1 close parentheses plus open parentheses negative 3 x squared plus 5 x minus 8 close parentheses?
Click here to see answer by MathLover1(20850) About Me 

Question 1011256: Solve 6 - x - x^2 = 0
Please have clear steps thanks!

Click here to see answer by nerdybill(7384) About Me 

Question 1011266: Simplify [(-ab^2)^2 (-ab)^3] / -a^5b^3
Thanks!

Click here to see answer by MathLover1(20850) About Me 

Question 1011713: A car price has increased by 8% to r72440. How much was the original price of the car?

Click here to see answer by ikleyn(52832) About Me 

Question 1011885: (-i)^4*3i^3
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Question 1012294: Simplify three divided by X plus two minus six divided by three X minus 1
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Question 1012573: There is 5.4 LTS of milk in a vessel. One third of the milk is used for some purpose. I. The remaining milk some water is added so that its volume increases by a factor of 1.25. One third of this new mixture is again used for some purpose. How much milk is left in the vessel now?
Click here to see answer by algebra hello(55) About Me 

Question 1013017: Solve: x^4 -3x^2 =4 (find 4 roots)
* I plugged it into my calculator and only got two root -2 and 2. There should be two more but how do you get the answers with i? (my classmate's answer for that are x=i and x= -i)

Click here to see answer by macston(5194) About Me 
Question 1013017: Solve: x^4 -3x^2 =4 (find 4 roots)
* I plugged it into my calculator and only got two root -2 and 2. There should be two more but how do you get the answers with i? (my classmate's answer for that are x=i and x= -i)

Click here to see answer by ikleyn(52832) About Me 

Question 1013018: Find four roots of the following equation:
2x^4 +5x^2 = 207
* I plugged into my calculator and only got 2 roots, x=-3 and x=3, but how do you get the rest? Thanks :)

Click here to see answer by ikleyn(52832) About Me 
Question 1013018: Find four roots of the following equation:
2x^4 +5x^2 = 207
* I plugged into my calculator and only got 2 roots, x=-3 and x=3, but how do you get the rest? Thanks :)

Click here to see answer by stanbon(75887) About Me 
Question 1013018: Find four roots of the following equation:
2x^4 +5x^2 = 207
* I plugged into my calculator and only got 2 roots, x=-3 and x=3, but how do you get the rest? Thanks :)

Click here to see answer by macston(5194) About Me 
Question 1013018: Find four roots of the following equation:
2x^4 +5x^2 = 207
* I plugged into my calculator and only got 2 roots, x=-3 and x=3, but how do you get the rest? Thanks :)

Click here to see answer by MathLover1(20850) About Me 

Question 1013106: Solve: x^4 +4x^2 = 32
Find 4 roots.
Thank you!

Click here to see answer by fractalier(6550) About Me 

Question 1013108: Solve x^4 +4x^2 = 32. Find 4 roots.
Thanks.

Click here to see answer by fractalier(6550) About Me 
Question 1013108: Solve x^4 +4x^2 = 32. Find 4 roots.
Thanks.

Click here to see answer by ikleyn(52832) About Me 
Question 1013108: Solve x^4 +4x^2 = 32. Find 4 roots.
Thanks.

Click here to see answer by macston(5194) About Me 
Question 1013108: Solve x^4 +4x^2 = 32. Find 4 roots.
Thanks.

Click here to see answer by josmiceli(19441) About Me 

Question 1013175: Find the sum of the exterior angles of a convex heptagon
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Question 1013189: The sum of a number and 14 is -30. Find the number
Click here to see answer by nerdybill(7384) About Me 

Question 1013434: x2+2+1/x2 solve the problem
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Question 1013433: x2y3-x3y2 solve the problem
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Question 1013690: What is thirteen plus v
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Question 1013690: What is thirteen plus v
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Question 1014281: I need help with this problem: Write the equation with parentheses so that the statement is true. 6 × 2 − 4 × 5 + 16 ÷ 4 = 3.

Click here to see answer by rothauserc(4718) About Me 

Question 1014461: Two motorcyclists left point A for point B at the same time. The speed of one motorcyclist was 1.5 times greater than the speed of the other one. The motorcyclist, who reached point B first, immediately went back. He met the other motorcyclist in 2 hours and 24 minutes after the departure from point A. The distance between point A and point B is 120 mi. What is the speed of the cyclists and the distance from the point they met and point B?
Click here to see answer by josgarithmetic(39623) About Me 

Question 1014771: 8+16/4*2-3^2

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Question 1014771: 8+16/4*2-3^2

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Question 1014905: In distributive property 75+210


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Question 1015279: I am trying to translate these statements into an expression. Could you help me?
-The number of years in days
-The cost of y gallons of gasoline (3.79/gallon)
-the number of minutes in h hours

Click here to see answer by rothauserc(4718) About Me 

Question 1015283: Find the property (APA,APM,CPA,CPM,DP,IP)of each of the changes:
5(n+4)+(-4n)
=(5n+20)+-4n
(5n+20)+(-4n)
=5n+(20+-4n)
5n+(20+-4n)
=5n+(-4n+20)

Click here to see answer by MathLover1(20850) About Me 
Question 1015283: Find the property (APA,APM,CPA,CPM,DP,IP)of each of the changes:
5(n+4)+(-4n)
=(5n+20)+-4n
(5n+20)+(-4n)
=5n+(20+-4n)
5n+(20+-4n)
=5n+(-4n+20)

Click here to see answer by Alan3354(69443) About Me 

Question 1015953: Find (g o f)(x) for f(x)=3x-4 and g(x)=x^2
Click here to see answer by fractalier(6550) About Me 

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, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840