The above question is a question from Algebra. It is a very important branch of mathematics which deals with structure, relationships and quantities of numbers.

Your question is about solving the equation X squared Plus 7 equals 43. It can be mathematically written as:

x

^{2 }+7 = 43

x

^{2}= 43 -7

x

^{2}= 36

Taking square root on both sides we get:

x = 6

which is the required answer for the above problem.