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Step-by-step explanation:
6. p(x) = x^2-3x-m(m+3)
by adding and subtracting mx ,we get
p(x) = x^2-mx-3x+mx-m(m+3)
[x-(m+3) ] +m [x-(m+3)]
[x-(m+3)] (x+m)
p(x)=0 [x-(m+3)] (x+m)=0
[x-)m+3)] = or (x+m)=0
x=m+3 or x=-m
so, the zeroes of p(x) are -m and +3
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