Étape par étape Niveau 4 3y²-(3y-2)-4 5a²-2a-(2a²-3a+8)-a+4 -(3x-2)-(2x-1).... Pergunta de ideia deqainatafzal0

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Étape par étape

Niveau 4
3y²-(3y-2)-4
5a²-2a-(2a²-3a+8)-a+4
-(3x-2)-(2x-1)

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Verified answer

3y²-(3y-2)-4 = 3y²-3y+2-4
= 3y²-3y-2
5a²-2a-(2a²-3a+8)-a+4 = 5a²-2a-2a²+3a-8-a+4
= 5a²-2a² -2a+3a-a+4
= 3a²+4
-(3x-2)-(2x-1) = -1x(3x)-(-1)x(-2) - (2x)+1
= -3x -2 -2x+1
= -5x -1

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Niveau 2 4-(2x+3) 4+ (2x+3) 4-(-2x+3) 4+(-2x-3)

Niveau 2 4-(2x+3) Niveau 3 4+ (2x+3) 4-(-2x+3) 4+(-2x-3)

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