2. Polynomials
medium

જો $x-1$ એ $4 x^{3}+3 x^{2}-4 x+k$ નો અવયવ હોય તો $k$ ની કિંમત શોધો. 

A

$4$

B

$-3$

C

$3$

D

$-4$

Solution

$x-1$ એ $p(x)=4 x^{3}+3 x^{2}-4 x+k$ નો અવયવ છે.

$\therefore \quad p(1)=0$

હવે $p(1)=4(1)^{3}+3(1)^{2}-4(1)+k$

$\therefore 4+3-4+k=0$

$\therefore k=-3$

Standard 9
Mathematics

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