In Exercises 1–4, make the given changes in the indicated examples of this section, and then solve the resulting problems.
In Example 10(b), change 5[a – (2a2b – a)] + 2b} to {a – [2a2b – (a + 2b)]}.
EXAMPLE 10 Several symbols of grouping
(b)
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Basic Technical Mathematics
- In Exercises 126–129, determine whether each statement is true or false. If the statement is false, make the necessary change(s) to produce a true statement. 126. Once a GCF is factored from 6y – 19y + 10y“, the remaining trinomial factor is prime. 127. One factor of 8y² – 51y + 18 is 8y – 3. 128. We can immediately tell that 6x? – 11xy – 10y? is prime because 11 is a prime number and the polynomial contains two variables. 129. A factor of 12x2 – 19xy + 5y² is 4x – y.arrow_forwardPage 102 #1 1. What is the value of 4(x- 2)(x-3)+7(x- 2)(x- 5)-6(x- 3)(x- 5) when x = 5? Show your work or explain your reasoning. Submitarrow_forwardThe product of cycles (1 2) (13 4) (1 4) can be expressed as (12) (3 4) True Falsearrow_forward
- how did you get 2x in part c?arrow_forwardSelect two expressions equivalent to 15a² – 5a - 11 (Select all that apply.) (14a² − 9a +1)+(a² + 4a − 12) (14a² − 9a −1 )+(a² + 4a + 10) (6a² — 10a+1)+(9a² + 5a −12) (6a² +10a+1)+(9a²-5a - 12)arrow_forwardExercises 143–145 will help you prepare for the material covered in the next section. In each exercise, factor completely. 143. 2r + 8x? + 8x 144. 5x3 – 40x?y + 35xy2 145. 96?x + 9b²y – 16x – 16y -arrow_forward
- College AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning