Rational Expression Pretest

What expression refers to the ratio of both polynomial numerator and denominator?

• Algebraic Expressions

• Basic Rational Expressions

• Rational Numerical Phrases

• Rational Algebraic Expressions

What is the excluded value of the rational function, \frac{P\left(x\right)}{Q\left(x\right)}

• Q(x) ≠ 0

• Q(x) = 0

• Q(x) ≥ 0

• Q(x) ≤ 0

Why is it important to know the excluded value/s of a rational algebraic expression?

• To prevent the expression to become define

• To prevent the expression to become 1

• To prevent the expression to become undefined

• To prevent the expression to become greater than or equal to zero.

Simplify this rational expression

Mathematical Equivalence

OFF

• 2

• 7

• 3

• 0

• -2

My first step will be to change the operator to multiplication and reciprocate the second fraction when...

• Adding

• Subtracting

• Multiplying

• Dividing

• 2

• 7

• 3

• 0

• -2

• 2

• 7

• 3

• 0

• -2

• 2

• 7

• 3

• 0

• -2

Mathematical Equivalence

ON