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add ( 1/5x^2-1/5x-3/4)+(1/10x^2-1/2x+1/2)must showwork

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add ( 1/5x^2-1/5x-3/4)+(1/10x^2-1/2x+1/2)

must showwork

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`1/5x^2-1/5x-3/4+1/10x^2-1/2x+1/2=`

`(1/5+1/10)x^2+(-1/5-1/2)x+(-3/4+1/2)=`

`3/10x^2+(-7/10)x+(-1/4)=`

`3/10x^2-7/10x-1/4`

 

 

 

 

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