### Home > A2C > Chapter 2 > Lesson 2.1.4 > Problem 2-55

2-55.

For the function

Substitute

for .

The square root of a negative number is undefined.

What value of

makes?Substitute

for .Square both sides.

Solve for

.

2-55.

For the function

Substitute

for .

The square root of a negative number is undefined.

What value of

makes?Substitute

for .Square both sides.

Solve for

.