alanislopez0429 alanislopez0429

25-04-2021
Mathematics

contestada

FIND THE SUM:
(6x^2-2x-3)+(x^2-3x+1)

1.6x^2+6x+3
2.7x^2+5x+2
3.7x^2-5x-2

Respuesta :

khadgiyanjan khadgiyanjan

25-04-2021

8x^2-5x-2

method

open bracket

6x^2-2x-3+x^2-3x+1

collect like terms

6x^2+2x^2-3-3x+1

8x^2-3-3x+1

again collect like terms

8x^2-2x-3x-3+1

8x^2-5x-3+1. (-×-=+ addition but keeping sign minus

8x-5x-2. (-×+=-)

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