exam Maths Puzzle Numerical Ability

I am having some awful troubles trying to figure out a few problems...
Solve:
(x+5)^2 = 3

Can anyone help me grasp this please? Thank you so much!

Read Solution (Total 0)

exam Other Question
simplify first and then solve the equation: {-7}+x=13 Can someone please help me with this problem??
Simplify the expression; assume that all the variables represent positive numbers.
(625x^4y)^1/4
______________
(16xy^3)3/4

Thank You so much