Question #0d9e8

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Answer 1 · 2017-05-13T08:02:18

A = $2$ $2$

First, let's create a list of square number and the number being squared to achieve the square number:

$1 \cdot 1 = 1$ $1 * 1 = 1$
$2 \cdot 2 = 4$ $2 * 2 = 4$
$3 \cdot 3 = 9$ $3 * 3 = 9$
$4 \cdot 4 = 16$ $4 * 4 = 16$
$5 \cdot 5 = 25$ $5 * 5 = 25$

Thus, just list and then identify the square number.

All the best!

Answer 2 · 2017-05-15T08:17:56

$2$ $2$ or $- 2$ $-2$

$(2) (2) = 4$ $(2)(2)=4$
$(- 2) (- 2) = + 4$ $(-2)(-2)=+4$

A negative number multiplied by another negative number results in a positive number.

negative x negative = positive