Question

if 'a' an integer, find the possible solutions, if any, for the following
${a}^{2} = 4$

Answer 1

Hello friend,

Here's the answer :-

When a^2 = 4


=> a = root of 4 = ±2

So,


Possible values of a = +2 or -2

Hope it helped :-D

Answer 2

ATQ
${a}^{2} = 4 \\ a \: \: = \sqrt{4 } \\ a \: \: = 2$
a can also be -2 since -2^2 = 4