Question

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Answer 1

Answer:

if x-1 & x+2 are factors of that polynomial,then the polynomial value will be 0 when you will substitute them.

Answer 2

Answer:

f(1)=(1)+10(1)+m(1)+n=0

or, m+n=(-11)------(i)

f(2)=2m+n+48=0

or, 2m+n=(-48)-----(ii)

after solving the equation we get,,

:. m=(-37)

n=26