One of the factors of x² – 15x +56 is
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Answered by
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x²-15x+56=0
x²-8x-7x+56=0
x(x-8)-7(x-8)=0
(x-8)(x-7)=0
if, x-8=0 then
x=8
and, if x-7=0 then
x=7
x= 7 or 8
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