tell accurately or i will report
tell
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tell accurately or i will reporttell
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Step-by-step explanation:
Correct option is
D
−2
Given x−3 is a factor x2−ax−15
Let p(x)=x2−ax−15
we know that if x−α is a factor of p(x) then p(α)=0
then
p(3)=0
(3)2−a(3)−15=0
9−3a−15=0
3a=−6
a=−2