Question

f(x)=2x and g(x)=x²+1 find the value of each expression

Answer 1

Answer:

The answer is 2i

Step-by-step explanation:

g(x)=x²+1

x²+1=0

x²= -1

x=√-1

i(iota)=√-1

x=i

f(x)=2x

f(x)=2×√-1

f(x)=2i

Note: i(iota) is a complex number. value of i is equal to √-1