Question

P(m) = m2- am +7 if m= -1 then find a=? *
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Answer 1

Answer:

plz comment correct question

Answer 2

Answer:

If m= –1 ,then putting –1 in place of m,

P(–1) =(–1)2–a(–1) +7

P(–1)= –2+a+7

P(–1) =a+5

0=a+5

or,a= –5