3x squared + 7x +1 =0
Please help with this problem. 3x squared + 7x + 1 = 0
3x^2 + 7x + 1 = 0
Use the quadratic formula.
-7 ± √(7^2 - 4(3)(1))
x = --------------------------
2(3)
-7 ± √(49 - 12)
x = -------------------
6
-7 ± √(37)
x = --------------
6
-7 ± 6.0828
x = ---------------
6
-7 + 6.0828 -7 - 6.0828
x = --------------- and x = ---------------
6 6
-0.91723 -13.0828
x = --------------- and x = ---------------
6 6
x = -0.15287 and x = -2.18046