for what k if 3 is zero of polynomial x sqaure + 11 x + k =0
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If 3 is the zero of the polynomial then,
x^2 +11x + k = 0
=> (3)^2 + 11×3 + k = 0
=>9+ 33+k=0
=> 42+k = 0
=>k = -42
Cheers !
x^2 +11x + k = 0
=> (3)^2 + 11×3 + k = 0
=>9+ 33+k=0
=> 42+k = 0
=>k = -42
Cheers !
priya224400:
where is x sqaure
you can see in my answer
we put x=3
Answered by
0
Hey friend
As 3 is the zero of polynomial x²+11x+K=0
So, Putting X=3
=>3²+11×3+K=0
=>9+33+K=0
=>42+K=0
=>K= -42
Be perfectionist
As 3 is the zero of polynomial x²+11x+K=0
So, Putting X=3
=>3²+11×3+K=0
=>9+33+K=0
=>42+K=0
=>K= -42
Be perfectionist
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