PreCal Operations with Rational Expressions

• -2 and 5

• 2 and -5

• 0, 2, and -5

• 0, -2, and 5

Tags

CCSS.HSF-IF.C.7D

Simplify

Tags

CCSS.HSA.APR.D.6

Tags

CCSS.HSA.APR.D.6

Multiply and Simplify

• 4(x+3)/(x+2),

• (x+2)/4(x+1)

• (x+2)/4(x+3),

• 4(x+1)/(x+2),

Tags

CCSS.HSA.APR.D.7

Tags

CCSS.HSA.APR.D.7

• A
• B
• C
• D

Tags

CCSS.HSA.APR.D.7

Divide the Rational Expression

• A

• B

• C

• D

Tags

CCSS.HSA.APR.D.7

To simplify a rational expression, I should

• Eliminate common terms in the numerator and denominator.
• Combine like terms in the numerator and denominator.
• Factor the numerator and denominator and eliminate common factors.
• Find an LCD.

Tags

CCSS.HSA.APR.D.6

Student 1 says that the restrictions of $\frac{9\left(d-4\right)}{\left(d-7\right)\left(d+8\right)}$ are $d\ne4$ , $d\ne7$ , and $d\ne-8$ . Is Student 1 correct? Why?

• Yes because d = 4, d = 7, and d = -8 all make the denominator equal to zero

• Yes because d = 4, d = 7, and d = -8 all make the expression evaluate to zero

• No because d = 4 does not make the denominator equal to zero

• No because d = 0 is also a restriction

Tags

CCSS.HSA.APR.D.7

Tags

CCSS.HSA.APR.D.7