Questions on Algebra: Polynomials, rational expressions and equations answered by real tutors!

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 Algebra: Polynomials, rational expressions and equations Solvers Lessons Answers archive Quiz In Depth

 Question 273348: Hi. I'm trying to solve x^2-5x+6=0. Thank you. Click here to see answer by solver91311(16872)

 Question 273317: I need help with this math problem. x^2-5x+6=0 Click here to see answer by scott8148(6628)

 Question 273640: what are the zeros for the polynomial 6x2 - 27x -54 Click here to see answer by asuar010(324)
 Question 273640: what are the zeros for the polynomial 6x2 - 27x -54 Click here to see answer by checkley77(12569)

 Question 273633: if x>0, then x ( x^2/x - x^2/x^2) = (A) 0 (B) 1 (C) x (D) x^2 (E) x-1 Click here to see answer by asuar010(324)

 Question 273616: Solve using the substitution method, the elimination method, or the graphing method. 5. 2(x-y) = 3x + x, x = 3y + 4 6. y = two-fifths – 7, y = two-fifths + 4 I need help in solving these Click here to see answer by checkley77(12569)

 Question 273645: solve tby completing the square: 4x^2-20x+21=0. Factor the polynomial Click here to see answer by richwmiller(9135)
 Question 273645: solve tby completing the square: 4x^2-20x+21=0. Factor the polynomial Click here to see answer by ankor@dixie-net.com(15639)

 Question 273699: I need help with the following problem please, including the steps to get to the answer if needed... thanks!! Factor the polynomial . If the polynomial cannot be factored, write PRIME. Click here to see answer by jim_thompson5910(28504)
 Question 273699: I need help with the following problem please, including the steps to get to the answer if needed... thanks!! Factor the polynomial . If the polynomial cannot be factored, write PRIME. Click here to see answer by stanbon(57250)
 Question 273699: I need help with the following problem please, including the steps to get to the answer if needed... thanks!! Factor the polynomial . If the polynomial cannot be factored, write PRIME. Click here to see answer by solver91311(16872)

 Question 273691: THERE ARE APPROXIMATLY 3 LBS OF MUSCLE FOR EVERY 7 IBS OF BODY WEIGHT OF A CERTAIN ANIMAL. FOR A 175-LB ANIMAL HOW MUCH OF THE WEIGHT IS MUSCLE? Click here to see answer by jim_thompson5910(28504)

 Question 273690: JACK USUALLY MOWS HIS LAWN IN 6 HOURS. MARYILYN CAN MOW THE SAME YARD IN 5 HOURS. HOW MUCH TIME WOULD IT TAKE THEM TO MOW THE LAWN TOGETHER? Click here to see answer by richwmiller(9135)
 Question 273690: JACK USUALLY MOWS HIS LAWN IN 6 HOURS. MARYILYN CAN MOW THE SAME YARD IN 5 HOURS. HOW MUCH TIME WOULD IT TAKE THEM TO MOW THE LAWN TOGETHER? Click here to see answer by solver91311(16872)
 Question 273690: JACK USUALLY MOWS HIS LAWN IN 6 HOURS. MARYILYN CAN MOW THE SAME YARD IN 5 HOURS. HOW MUCH TIME WOULD IT TAKE THEM TO MOW THE LAWN TOGETHER? Click here to see answer by stanbon(57250)

 Question 273615: Solve using a graphing calculator and its calc-intersect feature. Then solve algebraically and decide which method you prefer to use. y = 1.2x – 32.7, y = -0.7 + 46.15 I need help in solving these. I do not know what a graphing calculator is or how to write it or to graph it in excel or word. Click here to see answer by Alan3354(30983)

 Question 273706: Hi, I'm having trouble with the following question... Find the x- and y- coordinates of the parabola vertex for the function f(x)=-3x^2+6x-1 My textbook tells me to + and - the coefficient of x So I do this... f(x)=-3x^2+6x-1 f(x)=-3x^2+6x+3-3-1 f(x)=(-3x^2+6x+3)-3-1 And now I need to factor and simplify any help appreciated. thank you, Click here to see answer by solver91311(16872)
 Question 273706: Hi, I'm having trouble with the following question... Find the x- and y- coordinates of the parabola vertex for the function f(x)=-3x^2+6x-1 My textbook tells me to + and - the coefficient of x So I do this... f(x)=-3x^2+6x-1 f(x)=-3x^2+6x+3-3-1 f(x)=(-3x^2+6x+3)-3-1 And now I need to factor and simplify any help appreciated. thank you, Click here to see answer by Theo(3458)

 Question 273771: Find the least common factor of 6y^2+18y and 2y^2+14y+24. I can't seem to figure this one out. Click here to see answer by solver91311(16872)

 Question 273925: Weight of objects varie according to elevation. w=wieght r^-2=distance and C=constant w=Cr^-2 I need the formula for finding r. I know that r^-2 =1/r^2, however I do not know what to do other than as follows w=C(1/r^2). would this be correct. weight = 100 distance = 3963 squared would =15705369 or should I be thinking along the lines of 1/√3963. I am totally lost on which way I should be trying to look at such a problem Click here to see answer by scott8148(6628)

 Question 273948: Please help with solving this equation by factoring x^2+5x=x+8 I know everything has to come to the same side but I'm confused as what to do after that. Click here to see answer by calegebra(14)

 Question 274203: how do i do this? Factor completely x2 - 8x + 16 Click here to see answer by edjones(7569)

 Question 274206: can someone help me with this? Factor completely 16x2 +48xy + 36y2 Click here to see answer by Monkibat(7)

 Question 274215: Pleaase help me solve, they are fractions, can't find the underline x + 3 x^2-1 x-1 Click here to see answer by edjones(7569)

 Question 274207: Factorizations of cubes:How to approach this question 27a^3 + 64b^3 Click here to see answer by edjones(7569)

 Question 274188: the difference of the squares of two consecutive negative integers is 9. find the integers. Click here to see answer by fractalier(2101)

 Question 274260: Is any of these a polynomial, if so state the degree ? 1. x2(exponent)+2x+2 2. b2(exponent)c /(fraction bar)d4(exponent) 3. 8xz+1/2y Click here to see answer by solver91311(16872)

 Question 274285: please help solve this problem 11/2x + 4/7x I know first you find the LCD which is 14x but i don't know what you do after this 11/2x *14 + 4/7x *14 Click here to see answer by jim_thompson5910(28504)
 Question 274285: please help solve this problem 11/2x + 4/7x I know first you find the LCD which is 14x but i don't know what you do after this 11/2x *14 + 4/7x *14 Click here to see answer by checkley77(12569)

 Question 274009: can some help me solve x^3 + 5x^2 - 100x - 500 = 0 ? Click here to see answer by jsmallt9(3296)

 Question 274297: Hi. I'm trying to solve 2xy+5x-2y-5 over 3xy+4x-3y-4. Thank you! Click here to see answer by jim_thompson5910(28504)
 Question 274297: Hi. I'm trying to solve 2xy+5x-2y-5 over 3xy+4x-3y-4. Thank you! Click here to see answer by solver91311(16872)

 Question 274329: x^2+10x-128. I've had this problem a few times now (I'm a tutor myself) and it asks to solve for x. I just cannot factor this. Please help me refresh my algebra skills and help me find a way to solve for x on this one. Thank you. Click here to see answer by jim_thompson5910(28504)