Ok I have to simplify this

a(b-4)^2

-------------- (this is a fraction bar)

3a(b-4)

WYZANT.COM
CREATE FREE ACCOUNT
Sign In

Access thousands of free resources from expert tutors

Comment on posts and interact with the authors

Ask questions and get free answers from tutors

View videos, take interactive quizzes, and more!

Ok I have to simplify this

a(b-4)^2

-------------- (this is a fraction bar)

3a(b-4)

Tutors, please sign in to answer this question.

Ok, so knowing where to start is the main point: Do parentheses and exponents first - let's take the top half (numerator):

Let's re-write the top (numerator) 3a(b-4) as (3a)(b-4)(b-4) - this simply shows that (b-4)^{2} = (b-4)(b-4), just like (2)(2) = 2^{2}

The bottom (denominator) is 3a(b-4), can also be written as (3a)(b-4)

Now we have [(3a)(b-4)(b-4)] / [(3a)(b-4)]. (3a) / (3a) = 1, and (b-4) / (b-4) also = 1, so we're left with only one of the original (b-4) terms, and the
**answer is b-4**

- Math 1329
- Algebra 1 625
- Equations 124
- Word Problem 401
- Algebra Equation 117
- Math Help 590
- Geometry 260
- Algebra Help 205
- Equation 65
- 9th Grade 1