Question 48579
factor the quadratic expression completely, and find the roots of the expression. 
135x^2 - 222x + 91
x= [222+-sqrt(222^2-4(135)(91)]/270
x=[222+-12]/270
x=13/15 or x=7/9
Factors are:
(15x-13) and (9x-7)
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6x^2 - 42x + 72
x=[42+-sqrt(42^2-4(6)(72)]/12
x=[42+-6]/12
x=4 or x=3
Factors are
 6(x-4)(x-3)
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Cheers,
Stan H.