what does f(x)= x2+4x -2 equal

x2= x squared
in order of operations by

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

f(x) = x^2 + 4x - 2

Use quadratic equation with a = 1, b = 4 c = -2.

x = [-b +or- sqrt(b^2 - 4ac)]/2a

x = [-4 +or- sqrt(4^2 - 4*1*(-2))]/2

x = [-4 +or- sqrt(16 + 8)]/2

x = [-4 +or- sqrt(24)]/2

x = [-4 +or- 2sqrt(6)]/2

 

by Level 10 User (55.7k points)

Related questions

1 answer
Using the order of operation, what does (86-78)+4^3*2/12+1 equal?
asked Dec 29, 2011 in order of operations by rojo1031 Level 1 User (140 points) | 720 views
1 answer
what is (33+24/6-(5+2x3))x2
asked May 21, 2013 in order of operations by anonymous | 740 views
2 answers
What does 4 x 4 + 4 x 4 + 4 - 4 x 4 equal?
asked Sep 10, 2012 in Algebra 1 Answers by anonymous | 1.7k views
2 answers
how to make 2,4,6,8 is equal to 25
asked Dec 26, 2014 in order of operations by sanjay | 3.8k views
0 answers
How can 4, 5, 6, 8 equal 24?
asked Jan 20, 2013 in order of operations by anonymous | 800 views
0 answers
How can 8, 6, 5, 6 equal 24?
asked Jan 20, 2013 in order of operations by anonymous | 670 views
3 answers
3.6 divided by something equal 6
asked Oct 12, 2012 in order of operations by anonymous | 2.7k views
1 answer
what does opposite operation mean
asked Nov 12, 2013 in order of operations by anonymous | 1.2k views
2 answers
24-5*2=38 where does the parentheses go
asked Jul 6, 2012 in order of operations by anonymous | 909 views
2 answers
to what number group does 2 1/4 belong to?
asked Jan 11, 2012 in order of operations by anonymous | 838 views
1 answer
In which quadrant does (-2, -6) lie?
asked Dec 27, 2011 in order of operations by anonymous | 961 views
0 answers
what does the . mean in (x.2)+4=y
asked Nov 17, 2011 in order of operations by anonymous | 713 views
0 answers
find f(x-4)=sqrt(x+1)^2 -5
asked Dec 24, 2011 in order of operations by crazyrazey Level 1 User (780 points) | 651 views
1 answer
solve 6(4x-3)=3(8x+8)
asked Jan 27, 2013 in order of operations by anonymous | 659 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. complete the following. 825 use each digit once .make the two smallest 3 digit numbers and two largest 3-digit number (2)
  4. Solve 15 -1(12÷4+1)? (4)
  5. 8:4(5+2) (3)

Most popular tags

87,538 questions
99,875 answers
2,417 comments
544,453 users