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Question
Verify whether the indicated numbers is zeroes of the polynomials corresponding to them in the following case:
`f(x) = lx + m , x = - m/1`
Solution
`f ( x) = lx + m and x = - m/l`
put `x=-^m/l ⇒f ( ^-m/l)=lxx(^-m/l)+m=-m+m=0`
`∴x=-m/l`is aroot of `f(x)=lx=m`
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