M3 Simplify Rational Expressions

Simplify
     15x²/5x³

• 3x
• 3/x
• x/3
• 5/x

Mathematical Equivalence

ON

Mathematical Equivalence

ON

• already simplified

Mathematical Equivalence

ON

• (x+6)/(x+4)
• (x+6)(x+4)
• (x+6)
• (x+6)/(x-5)

Answer explanation

Remember, you can use a graph to verify your answer is correct. Graph the original problem and graph your answer. They should be the same graph. If they give you different graphs, you made an error and need to find it.

Mathematical Equivalence

ON

Answer explanation

If you struggle with factoring, graph just the numerator and find the roots (x-intercepts). Change the roots to your factors. Then do the same with the denominator.

Mathematical Equivalence

ON

• already simplified

Mathematical Equivalence

ON

Answer explanation

The denominator is a difference of squares.