Question

Given x=5 + √16 , select the value(s) of x. -11 1 9 21

Answer 1

The answers would be 9 and 1.

Explanation:

x= 5±√16 can be separated into two equations.

x=5+√16 and x=5-√16

1. 5+√16 can be solved by simplify √16, which is 4. So then it would become 5+4 which equals 9.

2. 5-√16 can be solved by simplifying √16 which is 4. So then it would become 5-4 which equals 1.

So the values of x are 9 and 1.

Answer 2

9 and 1 would be answer.

Explanation:

we have given the equation

x=5 ± √16

x= 5 ±√4²

equation can be separated into two equations

x=5+ √4² equation I and x=5-√4² equation II

Solving equation I

x= 5+4= 9

Solving equation II

x = 5-4 = 1

So the values of x are 9 and 1.