- #1
mooncrater
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Homework Statement
The question says that :
Find the value of ##a## so that the equation $$x^3-6x^2+11x+a-6=0$$ has exactly three integer solitions.
Homework Equations
IF ##p##,##q##,##r## are the roots of this equation then:
##p+q+r=6##
##pq+pr+rq=11##
##pqr=6-a##
The Attempt at a Solution
I just don't know how to use these equations to find ##a##.
So how to do this question?Are these equations of any use here?