Question

If $\begin{bmatrix} x+4 & 2x & 2x \\\[0.3em] 2x & x+4 & 2x\\\[0.3em] 2x & 2x & x+4 \end{bmatrix}=\lambda(4-x)^2$,then value of $\lambda$ is

• A. $\lambda=4x+5$
• B. $\lambda=5x+4$
• C. $\lambda=4-x$
• D. $\lambda=x-4$

Answer 1

Answer: (B)

$\lambda=5x+4$

Answer 2

The correct option is (B): $\lambda=5x+4$