Precalculus
posted by Isis .
fraction
1) 5/12+7/185/6
2) 3x/x11/x=_____/x^21x
3) x+1/x^25x+63x+11/x^2x6=
4)2x^23x1
5) 3x^2+2x2
6) x^23x9
45 with formula
B+_sqrt(B)^2+(4)(A)(C)/2A
please help!

for the fractions, some parentheses or at least spaces would help designate what the factors are
2x^23x1 : x=(3±√17)/4
3x^2+2x2 : x=(2±√28)/6 = (1±√7)/3
x^23x9 : x=(3±√45)/2 = (3±3√5)/2
Just plug in the numbers. What's the problem?
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