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Chapter 1: Q34. (page 20)

Evaluate each expression if a=鈭�1,鈥�b=4,鈥刟苍诲c=6.

34.8a+5b鈭�11a鈭�7b

Short Answer

Expert verified

The value of the expression is 5.

Step by step solution

01

– Write the given information

The expression given is

8a+5b鈭�11a鈭�7b

And

a=鈭�1,b=4andc=6

02

- DESCRIPTION OF STEP

To solve the given expression substitute variables a, and b by -1, and 4 respectively, as:

8a+5b鈭�11a鈭�7b=8鈭�1+54鈭�11鈭�1鈭�74=鈭�8+20+11鈭�28=12+11鈭�28=33鈭�28=5

Thus, 8a+5b鈭�11a鈭�7b=5.

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