Whay maked this statement true ? 7-^2=?

Remember the following:
-ve * -ve = +ve
-ve * +ve = -ve
x² = x * x
x⁻² = 

Now, for the given:
1- If the given equation is -(7)², then:
-(7)² = - (7*7) = -49
Therefore,, -49 would make this statement true.

2- If the given equation is (-7)², then:
(-7)² = (-7) * (-7) = 49
Therefore, 49 would make this statement true

3- If the given equation is 7⁻², then:
7⁻² = 

Therefore,  would make the statement true.

Hope this helps :)

Google it that might work