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Chapter 5: Q. 50 (page 498)

In the following exercises, subtract the polynomials.

Subtract5x2-x+12from9x2-6x-20

Short Answer

Expert verified

On subtracting5x2鈭�x+12from9x2鈭�6x鈭�20we get4x2鈭�5x鈭�32

Step by step solution

01

Step 1. Given information

Thegivenexpressionsare5x2鈭�x+12and9x2鈭�6x鈭�20Wehavetosubtract5x2鈭�x+12from9x2鈭�6x鈭�20i.eTofind:9x2鈭�6x鈭�20鈭�5x2鈭�x+12

02

Step 2. Subtract the polynomials

鈬�9x2鈭�6x鈭�20鈭�5x2鈭�x+12=9x2鈭�6x鈭�20鈭�5x2+x鈭�12Rewritewithoutparentheses=9x2鈭�5x2鈭�6x+x鈭�20鈭�12Combinetheliketerms=4x2鈭�5x鈭�32Simplify

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