i need help with these questions please and can u explain how u got the answers to please??

I need to factor these quadraticexpressis but i dont know how. I need this answered asap please and please explain how u got it. . A.X^2-x-4 2 B .2x^2-30x+72 C.2x^3-22x^2+56x D.4x^5+2 8x^4-32x^3 E.2a^3+10a^2-28a
in Algebra 1 Answers by
edited

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

x^2-x-4=0

me yuze Quadratik equashun

zeroes: 2.5615528 & -1.5615528

a=1, b=-1, c=-4

b^2-4ac=17, so sqrt(17)=4.123105626

-b/2a=0.5

root/2a=2.061552812808

tell teech tu giv a problem weer anser be sumthun simpel, like 2
by

Related questions

1 answer
Please help me with these questions?
asked Mar 20, 2016 in Other Math Topics by McCquabena Bannor Level 4 User (7.5k points) | 555 views
0 answers
Please help me with these questions?
asked Jul 26, 2012 in Word Problem Answers by anonymous | 597 views
0 answers
Please Help me: changing to Questions and Answers themes.
asked Oct 16, 2011 in Word Problem Answers by answernote Level 1 User (120 points) | 593 views
0 answers
Please help I need the answers asap
asked Jul 26, 2012 in Word Problem Answers by BabydollXoX Level 1 User (160 points) | 742 views
1 answer
Please help me in these questions
asked Feb 9, 2018 in Calculus Answers by falcon147 | 406 views
0 answers
can you please answer these questions on probibility?
asked Sep 10, 2012 in Algebra 1 Answers by anonymous | 1.9k views
2 answers
Here are questions for math! I need help with this!
asked Nov 6, 2015 in Pre-Algebra Answers by Mathical Level 10 User (57.4k points) | 851 views
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!

Most popular questions within the last 3000 days

  1. 50+50-25X0+2+2= (19)
  2. it takes 10 road workers 5 days to complete a road repair when working 2 hours a day.Working at the same pace,how many days will it take 2 people working 5 hours a day to finish it? (3)
  3. Solve 15 -1(12÷4+1)? (4)
  4. 8:4(5+2) (3)
  5. How can i represent 1/3; 3/3; 7/3; 10/3 and 15/3 on a number line? (1)

Most popular tags

87,516 questions
100,279 answers
2,420 comments
731,681 users