Adding two functions one root one linear then find domain

The video tutorial covers the addition of expressions involving X and square roots, emphasizing the importance of like terms for simplification. It explains why addition under radicals is not possible and demonstrates the correct approach to multiplication under radicals. The tutorial concludes with a method to find the domain of an expression, focusing on the conditions for radicals.

Why can't you combine a number outside a radical with one inside it?

• Because they are both under a radical

• Because they are both linear variables

• Because they are not like terms

• Because they are both constants

What is the result of multiplying two numbers both under a radical?

• The square root of their sum

• The product of their square roots

• The sum of their square roots

• The square root of their product

When can you add two numbers under a radical?

• When both numbers are under the same radical

• When one number is outside the radical

• When both numbers are linear variables

• When both numbers are equal

What must be true for the expression X + 1 under a radical to be defined?

• X must be greater than 1

• X must be equal to 0

• X must be greater than or equal to -1

• X must be less than -1

What is the domain of the expression X + 1 under a radical?

• [-1, ∞)

• (0, ∞)

• (-∞, -1)

• (-1, ∞)