SOLUTION: The formula is -b^2±√b^2-4ac
----------- --
2a
Use the formula to solve the following and give the answers as decimal approximation
Algebra.Com
Question 981195: The formula is -b^2±√b^2-4ac
--------------
2a
Use the formula to solve the following and give the answers as decimal approximations to two places.
1) x^2+2=0
2) x^2-7x=2
3) x^2=6x-11
Thank you
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
These are just arithmetic problems. Plug in the values and do the arithmetic.
John

My calculator said it, I believe it, that settles it
RELATED QUESTIONS
x= -b +-√b^2-4ac/2a
Solve the following quadratic equations using the quadratic... (answered by checkley77)
Use the quadratic formula to solve the equation x^2+7x+9=0.
The formula is: x=-b... (answered by macston)
Use the formula x = -b+_ square root b^2-4ac over 2a to solve the equation 3x^2 = 2x... (answered by tommyt3rd)
Use the formula x = -b+_ square root b^2-4ac over 2a to solve the equation 3x^2 = 2x... (answered by tommyt3rd)
Use the following quadratic formula to answer the following equation:
x= {{{(-b+-... (answered by Alan3354)
Solve using the quadratic formula: 20 = 2(2a - 5)squared + 8
Quadratic formula: -b +-... (answered by jim_thompson5910)
Four steps to derive the quadratic formula are shown below.
I x^2+(-b)/a x=(-c)/a
II... (answered by ikleyn)
Identify terms for the quadratic formula 0.05b^2-45b-920 for ax^2+bx+c=0
x=-b... (answered by jim_thompson5910)
How do I use this formula x=(-b±√(b^2-4ac))/2a and find out what a, b, and c are,... (answered by oberobic)