SOLUTION: The question is:
Use the quadratic formula to solve for the roots
9x²-6x-7=0
my steps:
6±√6²-4(9)(-7) over 18 = 6±√36+252 over 18 = 6±√288 over 18
Algebra.Com
Question 134843: The question is:
Use the quadratic formula to solve for the roots
9x²-6x-7=0
my steps:
6±√6²-4(9)(-7) over 18 = 6±√36+252 over 18 = 6±√288 over 18 ; √288 = 144 * 2 so,
6±12√2 over 18 = For my final answer I left it as : 1/3±12√2 over 18 Is that correct ?
do I need to simplify the 12 and the 8 ? I'm having doubts because the 12 is part of the radical and the 8 is by itself... (if I did anything wrong in my steps please notify me
thank you
Answer by vleith(2983) (Show Source): You can put this solution on YOUR website!
What you have is mathematically correct. You can simplify
as
so your 'final answers' could also be
and
nice work. keep it up
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