if 3 is a zero of a polynomial x square +2x-a then find a
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Step-by-step explanation:
Given that:-
Given polynomial p(x)=x²+2x-a
we know that
If 3 is a zero then it satisfies the given polynomial
=>p(3)=0
=>(3)²+2(3)-a=0
=>9+6-a=0
=>15-a=0
=>a=15
The value of a is 15
Answered by
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Answer:
15 is the answer for your question
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