SOLUTION: the question is: find the solutions to the equation 3x^2-4x-6=0, using the quadratic formula. it also asks for the answer to be rounded to the nearest hundredth. i have tried th

Algebra ->  Trigonometry-basics -> SOLUTION: the question is: find the solutions to the equation 3x^2-4x-6=0, using the quadratic formula. it also asks for the answer to be rounded to the nearest hundredth. i have tried th      Log On


   

Question 697483: the question is:
find the solutions to the equation 3x^2-4x-6=0, using the quadratic formula. it also asks for the answer to be rounded to the nearest hundredth.
i have tried the problem , it is a multiple choice, but i cannot get the correct answer.
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
Find the roots of the equation by quadratic formula

a= 3 b= -4 c= -6

b^2-4ac= 16 - -72
b^2-4ac= 88 sqrt%28%0988%09%29= 9.38
x=%28-b%2B-sqrt%28b%5E2-4ac%29%29%2F%282a%29
x1=%28-b%2Bsqrt%28b%5E2-4ac%29%29%2F%282a%29
x1=( 4 + 9.38 )/ 6
x1= 2.230
x2=( 4 -9.38 ) / 6
x2= -0.897

x = 2.23 OR -0.90