Any number in the form of a+-bi, where a and b are real numbers and b is not equal to 0 is considered a pure imaginary number

Step-by-step explanation:

A pure imaginary number is a complex number that doesn't have a real part.

So, if a is a real number, and it doesn't specify that a is only equal to zero, then the expression a+bi is not a pure imaginary number, it's only a complex number. Examples of imaginary numbers are where

In this case, , that is, a can be

Therefore the statement is false, because a can take any real value.

step-by-step explanation:

first, eliminate the parenthesis:

3

x

+

2

−

4

x

second, group like terms:

3

x

−

4

x

+

2

third, combine like terms:

(

3

−

4

)

x

+

2

→

−

1

x

+

2

→

−

x

+

2

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step-by-step explanation: