Adding/Subtracting Rational Expressions (U4L3)

This is similar to what other topic we have already done?

• linear functions

• graphing quadratics

• adding/subtracting polynomials

• multiplying cubics

What is the LCD of this example?

• 14x

• (x+1)(x-1)

What was the LCD of this problem?

• x

• x³

• x²

• 4

What will I get from combining 7x-10x?

• 3x

• -3x

• 17x

• -17x

What was the answer for number 7?

• A

• B

• C

• D