How many are 5 raised to 2 ???

25

Step-by-step explanation:

5^2

This is 5 multiplied by itself 2 times

5*5

25

a complex number is a number that can be expressed in the form a + bi, where a and b are real numbers, and i is a solution of the equation x2 = −1. because no real number satisfies this equation, i is called an imaginary number. has no real solution, since the square of a real number cannot be negative.