a square number has and odd amount of numbers but 5to the power of 9 has an even amount of numbers
5×5×5×5×5×5×5×5×5
Answer:
0.782
2.1%
Step-by-step explanation:
Part A)
x=-3i
x=3i
Part B)
(x+3i)(x-3i)
Given:
x^2+9=0
x^2=-9
x= √-9
x=√-1 *√9
x=± i *3
x=±3i
x^2 - (-9)=0
x2-(3i)^2=0
(x-3i)(x+3i)=0 !
all real numbers
see picture below
