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Chapter 7: Q. 407 (page 736)

In the following exercises, add and subtract.

2b2+3b-15b2-49-b2+16b-149-b2

Short Answer

Expert verified

The simplified expression is3b2+19b-16b2-49

Step by step solution

01

Step 1. Given information

Expression:

2b2+3b-15b2-49-b2+16b-149-b2
02

Step 2. Rewrite the second fraction    

2b2+3b-15b2-49-b2+16b-1-(b2-49)=2b2+3b-15b2-49+b2+16b-1b2-49

now the denominator of both fractions are same

03

Step 3. Add the numerator of both fractions by keeping denominator same         

2b2+3b-15+b2+16b-1b2-49=3b2+19b-16b2-49

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