Write down the next two terms into the given sequence :
-1; 1; 3 ;​

5 ;7

explantion:

-1+2=1

1+2=3

3+2=5

5+2=7

the pattern is +2

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.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225