Question

Squaring a number: using x^2 key on calculator.Question a.

Answer 1

Squaring a number means multiplying the number by itself

Example: Squaring of n is n x n = n^2

Squaring of 5 is 5 x 5 = 25

Squaring (-2) is (-2) x (-2) = 4

That means squaring a negative number give a positive number

Then squaring a number means the number to the power of 2

$n\times n=n^2$

Squaring of n is n^2

$\begin{gathered} 7^2=49 \\ (-7)^2=49 \end{gathered}$

IX:

a) 49

b) 49