Questions on Algebra: Radicals -- complicated equations involving roots answered by real tutors!

Tutors Answer Your Questions about Radicals (FREE)

Question 389610: The revenue from selling x units of a product is given by
y = -0.0002x^2 + 20x. How many units must be sold in
order to have the greatest revenue? (Find the x-coordinate
of the vertex of the parabola.)
Click here to see answer by haileytucki(390)

Question 389683: hey i need some help , i forgot kinda alegbra im very good at it . i took a placement test and failed bad because i couldnt remember how to do it can you please help me
Click here to see answer by rfer(16322)

Question 389937: What is the reciprical of 3-square root of 5?
Click here to see answer by josmiceli(19441)

Question 389975: a light year is 5.9X10 to the 12 power miles. a mile is 1.609x10 to the 3 power meters. in scientific notation, how many meters are in a light year
Click here to see answer by Alan3354(69443)

Question 389971: 6x+3y=9;solve for y
Click here to see answer by rfer(16322)

Question 389968: 5n+34=-2(1-7n)
Click here to see answer by rfer(16322)

Question 390071: If one root of the equation ... 2x^2+10x+k=0 is -2, find K and the other root?
Click here to see answer by robertb(5830)

Question 390071: If one root of the equation ... 2x^2+10x+k=0 is -2, find K and the other root?
Click here to see answer by ewatrrr(24785)

Question 390066: how do you write a quadratic equation with a root of 2-5i ?
Click here to see answer by robertb(5830)

Question 390311: I think this is the right group. I need help solving what 18 miles and 18 miles and 18 yards would be as a ratio. Also, it has to be all in miles

Click here to see answer by richard1234(7193)

Question 390479: 2 square root of a minus 1 is equals to 4a

Click here to see answer by haileytucki(390)

Question 390479: 2 square root of a minus 1 is equals to 4a

Click here to see answer by richard1234(7193)

Question 390138: 3x=7x^1/2 -2
3x=7radicalx -2
Click here to see answer by jsmallt9(3758)

Question 390574: Pls. help to rationalize the numerator for
( �√x-�√a ) / ( x-a )
(the numberator is cube root x and cube root a)
Click here to see answer by Edwin McCravy(20055)

Question 390791: 16 plus 2 to the 5th power divided by 8 minus the square root of 36 plus 7
Click here to see answer by haileytucki(390)

Question 390797: please help me solve this problem:
Click here to see answer by Alan3354(69443)

Question 390797: please help me solve this problem:
Click here to see answer by richard1234(7193)

Question 390866: Why is it important to simplify radical expressions before adding or subtracting? How is adding radical expressions similar to adding polynomial expressions? How is it different? Provide expressions for others to simplify.

Click here to see answer by richard1234(7193)

Question 390932: if the square root of 2 less than 6 times a number is divided by 2 less than the number, the quotient is 2. find the number.
Click here to see answer by vksarvepalli(154)

Question 390973: 6x^4-13x^2+6=0
Click here to see answer by MathLover1(20849)

Question 390974: multiply. (7x+5)(5x^2+5x+2)
Click here to see answer by roguevoices(1)

Question 390972: (5sqrt2-10sqrt5)(4sqrt2+8sqrt5)
Click here to see answer by ewatrrr(24785)

Question 391008: (-4t)^2(2t^4)^3 4t7843-nvc
Click here to see answer by ezynerdy(1)

Question 390928: How do you simplify Radicals like (2-radical3)(2+radical3)
Click here to see answer by jsmallt9(3758)

Question 390898: Question- How can you write the expression with rationalized denominator?
2 plus square root of 3 (with index root of 3) over square root of 6 also with index root of 3
Click here to see answer by jsmallt9(3758)

Question 390897: confused of what to multiply to the fraction and how to do it?
square root of 3 minus the square root of 6 over the square root of 3 plus the sqare root of 6
Question- How can you write the expression with rationalized denominator?
Click here to see answer by jsmallt9(3758)

Question 390985: Simplify.
5sqrt-1/243
Click here to see answer by jsmallt9(3758)

Question 391066: in my book it says : Write the slope-intercept form of an equation of the line that passes through the given point and is parallel to the graph of each equation. my question is how to do this problem (2,-7), y = x - 2
Click here to see answer by solver91311(24713)

Question 391279: Can you please help me simplfy the following questions or problems.
I need to simplify assumiong all variables are positive.
(80/4) to the (1/2power)
Click here to see answer by unlockmath(1688)

Question 391288: (36^2a^3/b^2)^1/4(8a^3/b^-2)^1/3
Click here to see answer by haileytucki(390)

Question 391286: 64^-2/3
Click here to see answer by mananth(16946)

Question 391567: Hi thank you for reading this, I am having a little bit of trouble with solving this problem about simplifying radical expressions.Can you please help me solve this problem: Thank you so much, I keep thinking I am not distributing the coefficient and square root correctly. Once again thank you!
Click here to see answer by Alan3354(69443)

Question 391448: express the following expression as a single radical. x^3/4y^1/3
Click here to see answer by jsmallt9(3758)

Question 391722: Factor Completely.
6x^7-54x^6+42x^5
Click here to see answer by ewatrrr(24785)

Question 391744: Subtract. Simplify by collecting like radical terms if possible.

Totally confused. I think I'm missing a step
Click here to see answer by chrisrao(11)

Question 391720:
Click here to see answer by chrisrao(11)

Question 391702: (5+squared 2)squared 2/6 "fraction format" simplify the numerator by distributing squared 2� Please show how...
Click here to see answer by Alan3354(69443)

Question 391867: Solve x^2 = 98, where x is a real number.
Simplify your answer as much as possible.

If there is more than one solution, separate them with commas.
Click here to see answer by MathLover1(20849)

Question 391873: Compute the value of the discriminant and give the number of real solutions to the quadratic equation.
-4x^2 + 4x - 1 = 0
Click here to see answer by stanbon(75887)

Question 391871: Solve (v - 8)^2 - 54 = 0, where v is a real number.
Simplify your answer as much as possible.
If there is more than one solution, separate them with commas.
Click here to see answer by stanbon(75887)

Question 391883: Write the following expression in simplified radical form

Assume that all variables represent positive real numbers
Click here to see answer by Alan3354(69443)

Question 391880: Rewrite the following in simplified radical form.

Click here to see answer by richard1234(7193)

Question 391882: Rewrite the following in simplified radical form

Assume that all variables represent positive real numbers.
Click here to see answer by nerdybill(7384)

Question 391877: Simplify

Be sure to write your answer in lowest terms
Click here to see answer by nerdybill(7384)

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