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 Question 361107: Hello! I am working on quadratic equations this week, in my Algebra class (section 11.4, #7). At the current moment I am stumped and totally confused on this one problem we are required to do. Apart of the requirements for completing the assignment is to show every single step on how I got to my answer. I wasn't sure if anyone could help me, but I thought I would post to see who's the master at these type of equations. Thank you so much in advance for all your help! Directions: Solve the equation by making an appropriate substitution. x-〖2x〗^(1/2)-8=0 Click here to see answer by mananth(12270)

 Question 361105: Jess here! I need some help! I am not good in math AT ALL and this includes intermediate Algebra (section 11.4). My teacher is requiring that we, the students, show every single step on how we obtained our answers. If someone could be so kind as to help me solve this problem (below), with every single required step on how you got your answer, I would be SO HAPPY and so GRATEFUL! Directions state: Solve the equation by making an appropriate substitution. x^4 - 〖40x〗^2+144=0 Thanks so very much! Click here to see answer by mananth(12270)

 Question 361187: Please factorise the following by using the difference of two squares method (2x+y) squared -4 4a squared b squared -16c squared Click here to see answer by Alan3354(30993)

 Question 361188: Please solve the quadratic equation by factors 2/x-2 + 3/x = 5/x-4 Please solve using the difference of two squares method 49a squared -4b squared Click here to see answer by edjones(7569)

 Question 361245: Find all the real roots of equation x^4 + 2x^2 − 24 = 0. Click here to see answer by ewatrrr(10682)

 Question 361324: Hi, I am looking for some help! I need to show my work, (all steps I took to obtain the answer, but I have no idea how to complete the problem. Could someone please help me? (section 11.1, #7) Directions: Solve each equation by the square root property. If possible, simplify radicals or rationalize denominators. Express imaginary solutions in the form a +bi. 〖3x〗^2-2=0 (the first part should be 3x (squared) but for some reason it's not showing that way). If you can show me the steps and how to obtain the answer that is: {±√6/3} Click here to see answer by stanbon(57361)
 Question 361324: Hi, I am looking for some help! I need to show my work, (all steps I took to obtain the answer, but I have no idea how to complete the problem. Could someone please help me? (section 11.1, #7) Directions: Solve each equation by the square root property. If possible, simplify radicals or rationalize denominators. Express imaginary solutions in the form a +bi. 〖3x〗^2-2=0 (the first part should be 3x (squared) but for some reason it's not showing that way). If you can show me the steps and how to obtain the answer that is: {±√6/3} Click here to see answer by Alan3354(30993)

 Question 361331: Hi, I was wondering if someone could possibly help me. I am supposed to do these homework questions in my Algebra class, but I am having a hard time getting started. I don't know what steps to go through to obtain the answer. The back of the book shows the answers, but that doesn't help me much. I need to show I got to the answer. If anyone could possibly assist me, by showing me how you obtained the answer, I would be forever grateful! :o) (Section 11.1, Pg. 749, # 107) Directions: In the following exercise use the compound interest formula A=P(1+r) ^t to find the annual interest rate, r. In 2 years, an investment of \$1280 grows to \$1445. the answer in the back of the book is: 6.25%, but I have no idea how they got this answer. Your help is forever appreciated! :o) Click here to see answer by edjones(7569)

 Question 361342: Hi, I was wondering if someone could possibly help me. I am supposed to do these homework questions in my Algebra class, but I am having a hard time getting started. I don't know what steps to go through to obtain the answer. The back of the book shows the answers, but that doesn't help me much. I need to show I got to the answer. If anyone could possibly assist me, by showing me how you obtained the answer, I would be forever grateful! :o) Section 11.2, Pg. 762, #3. Directions: Solve each equation using the quadratic formula, simplify solutions, if possible. 〖2x〗^2-7x=-5 (the first part should read 2x squared) the answer it shows in the back of the book is: {1,5/2} Click here to see answer by stanbon(57361)

 Question 361348: Hi, I was wondering if someone could possibly help me. I am supposed to do these homework questions in my Algebra class, but I am having a hard time getting started. I don't know what steps to go through to obtain the answer. The back of the book shows the answers, but that doesn't help me much. I need to show I got to the answer. If anyone could possibly assist me, by showing me how you obtained the answer, I would be forever grateful! :o) Section 11.2, Pg. 764, #79 The longer leg of a right triangle exceeds the shorter leg by 1 inch, and the hypotenuse exceeds the longer leg by 7 inches. Find the lengths of the legs. Round to the nearest tenth of a inch. The answer the book shows is: 17.6in. and 18.6 in. I don't understand how they were able to get this answer. Any help is greatly appreciated. Thanks! Click here to see answer by stanbon(57361)

 Question 361402: I am having some difficulty with quadratic equations. The problem is, I don't understand the steps I should take to get the correct answer. Could you possibly show me each step I should take to find the anwer? I appreciate anyone and everyone's help! Section 11.4, #6 Direction: Solve the equation by making an appropriate substitution. (2x-4 )^2-6(2x-4)-7=0 (it should say (2x-4) squared) The correct answer according to the book is: {3/2. 11/2} Click here to see answer by jim_thompson5910(28595)

 Question 361698: 28x^2-19x+3=0 what are the factors of this equation Click here to see answer by shorty4aboo(8)

 Question 361774: Can you help with this problem: Show that there is no quadratic equation ax^2 + bx + c = 0 such that a, b, and c are real numbers and 3i and -2i are solutions. Thanks for your help. Click here to see answer by Fombitz(13828)

 Question 361779: I have 3 numbers whose sum is 60. The middle number is four time the smallest number. What is the maximum product of the two larger number? Click here to see answer by Fombitz(13828)

 Question 361942: Solve a^3+4s^2-45a=0 Answers A) 0,-5,9 B) 5,-9 C) -36,-9 D)0,5,-9 ps ^ means to the power of ....thanks Click here to see answer by Theo(3464)
 Question 361942: Solve a^3+4s^2-45a=0 Answers A) 0,-5,9 B) 5,-9 C) -36,-9 D)0,5,-9 ps ^ means to the power of ....thanks Click here to see answer by ewatrrr(10682)

 Question 361941: Solve 4x^3+x^2-36x-9=0 Answers A) 3,(1/4) B) -9,9,-(1/4) C) -3,3,-4 D) -3,3,-(1/4) ps the ^ means to the power of....thanks soo much Click here to see answer by edjones(7569)

 Question 362029: I am having a problem grasping the factoring of quadratic equations. I have an example 3x^2+18x+25=0 Now from what I understand I am suppose to find two numbers that add up to 25 that also make 18 or so I thought. I am confused is there anyways to simplify this for me. I understand once I figure out this how to plug in the numbers for the x=-b sqrt of b^-4ac over 2a to get my answers Click here to see answer by Alan3354(30993)

 Question 362030: Good Afternoon, Sam here. I am having a terrible time trying to solve this story or word problem. The trouble I am having is getting the exact answer as the book shows. Could someone who is an expert is this area please show me, by covering all steps how I would attack this type of problem. Section 11.5, #9 Directions: Solve The total function p(x) for a company producing x thousand units is given by P(x)=-〖2x〗^2+28x-80 (it should be -2x squared) Find the values of x for which the company makes a profit. [Hint: company makes a profit when P(x)>0]. the answer my textbook provides is: x is between 4 thousand units and 10,000 units. I have no idea how to even get started, or what steps I should use to get the correct answer. Your help is greatly appreciated. Click here to see answer by edjones(7569)

 Question 362072: I am in serious need of help with quadratic equations. If someone could be so kind as to show me the exact steps I need to solve the problem below, I would be most thankful. 11.3, #2 Directions: Use the quadratic formula to solve equation. x^2+12x+19=0 (should be x squared) The answer I have that was obtained from my book is: {-6 ,±√17} But, I don't understand how they get to this answer. I am thankful for your help! Click here to see answer by Fombitz(13828)

 Question 362033: Happy Tuesday everyone! I am looking for some expertise when it comes to solving "story" or "word" problems dealing with quadratic equations. My teacher requires that when we work through a problem that we show her all of the steps to show what we did to get our answer. I was wondering if you could help me? 11.5, #10 Directions: Solve 10.) The daily number of request, f(x), for a song that a local radio station receives can be modeled by f(x)=x^2-5x+11 (it should read x squared) where x is the number of days after the song has been released. During which time period will the daily number of requests be below 7? The book shows the answer to be: between day 1 and 4. But, I have not a clue what steps I need to perform to get this as my final outcome. Thanks so much! Click here to see answer by ewatrrr(10682)
 Question 362033: Happy Tuesday everyone! I am looking for some expertise when it comes to solving "story" or "word" problems dealing with quadratic equations. My teacher requires that when we work through a problem that we show her all of the steps to show what we did to get our answer. I was wondering if you could help me? 11.5, #10 Directions: Solve 10.) The daily number of request, f(x), for a song that a local radio station receives can be modeled by f(x)=x^2-5x+11 (it should read x squared) where x is the number of days after the song has been released. During which time period will the daily number of requests be below 7? The book shows the answer to be: between day 1 and 4. But, I have not a clue what steps I need to perform to get this as my final outcome. Thanks so much! Click here to see answer by solver91311(16897)

 Question 362086: The parabola with vertex (2,-4) and passing through the point(8,6)is given by the equation y=Ax2+Bx+C, where A=_______ B=___________ C=__________ Click here to see answer by Fombitz(13828)

 Question 362065: Good Afternoon, Could someone please assist me that has the knowledge that I lack and that's the exact steps on how write a quadratic equation in standard form with the given soltuion set. I am required to show all of my work, so if you could show and explain each step, I would be most grateful. 11.3, # 16: Directions: Write a quadratic equation in standard form with the given solution set. x^2-5x-6=0 (should read x squared-5x-6=0) Also, the book shows the answer to be {-1,6}I appreciate your assistance. Click here to see answer by ewatrrr(10682)

 Question 362161: Determine the coordinates of the vertex and the roots of the quadratic equation 15x^2-14x-8=0 Click here to see answer by solver91311(16897)

 Question 362320: What's the quadratic equation if X=2+i square root of 11, X= 2-i square root of 11 Click here to see answer by mananth(12270)

 Question 362332: whats the x intercepts of the equation 5x^2-13x-6? Click here to see answer by Fombitz(13828)

 Question 362374: (x-3)(x+5)=7 i need to solve this problem. I tried factoring it out but it doesnt work so i need to use the quadratic equation to find the answers Click here to see answer by mananth(12270)