Question

Pick out the solution from the values given in the bracket next to each equation. Show that the other values do not satisfy the equation.

(iii) $p-4=0\left(4,-4,8,0\right)$

Answer 1

Given,$p-4=0\left(4,-4,8,0\right)$

Now,

For, $p=4$, LHS$$\begin{gathered} =4-4 \\ =0 \end{gathered}$$

Here, LHS$=$RHS. Therefore, $p=4$ is a solution.

For, $p=-4$ LHS $$\begin{gathered} =-4-4 \\ =-8 \end{gathered}$$

Here LHS$\ne$RHS. Therefore $p=-4$ is not a solution.

For, $p=8$ LHS $$\begin{gathered} =8-4 \\ =4 \end{gathered}$$

Here, LHS$\ne$RHS, Therefore, $p=8$ is not a solution.

For, $p=0$, LHS $$\begin{gathered} =0-4 \\ =-4 \end{gathered}$$

Here, LHS$\ne$RHS. Therefore, $p=0$ is not a solution.

Here, $p=4$ is the solution of the given equation