Six times the square of a number x plus 11 times the number equals 2. What are possible values of x?
1 answer:
Answer:
-2, 1/6
Step-by-step explanation:
6x²+11x=2
6x²+11x-2=0
Delta=11²-4×6×(-2)=121+48=169
x1,2=(-11 +- sqrt(169))/(2×6)=
(-11 +- 13)/12
x1=(-11+13)/12=2/12=1/6
x2=(-11-13)/12=-24/12=-2
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