if alfa and bita are the zeros of polynomial x²-5x+m such that alfa-bita= 1 find m
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x²-5x+m
alpha+bita=5
alpha-bita=1
(alpha- bita)²=1
alpha ²+bita²-2alpha bita=1
(alpha+bita)²-4alpha.bita=1
25-4m=1
4m=24
m=6
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