Question

1Type the correct answer in the box. Use numerals Instead of words.Consider this expression.Va3 – 7 + 161When a = 2 and b = -4, the value of the expression is

Answer 1

Given:

The given expression is

$\begin{gathered} \sqrt{a^3-7}+|b|. \\ \text{ And }a=2,\text{ }b=-4. \end{gathered}$

Required:

We have to find the value of the given expression from the given value of a and b.

Explanation:

We put the given value of a and b in the given expression to find the answer.

$\begin{gathered} \sqrt{(2)^3-7}+|-4| \\ =\sqrt{8-7}+4 \end{gathered}$$\begin{gathered} =1+4 \\ =5. \end{gathered}$

Final answer:

Hence the final answer is

$=5$