If -1 is one of the zeroes of the polynomial x'3+2x'2-11x-12. find all the zeroes of the given polynomial
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If -1 is zero of f (x)=x'3+2x'2-11x-12
(x+1) will be a factor of f (x)
on dividing f (x)=(x+1)(x^2+x-12)
=(x+1)(x+4)(x-3)
so other zeroes are -4,3
(x+1) will be a factor of f (x)
on dividing f (x)=(x+1)(x^2+x-12)
=(x+1)(x+4)(x-3)
so other zeroes are -4,3
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