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a fost răspuns

Deschideti parantezele si reduceti termenii asemenia:
a)5(x-1)+2x+3;
b)3(1-x)+2-3x;
c)3x(x-1)-17+x(1+3x)+1;

Răspuns :

Izabelapasca
a)5(x-1)+2x+3= 5x-5+2x+3=7x-2
b)3(1-x)+2-3x=3-3x+2-3x=5-6x
c)3x(x-1)-17+x(1+3x)+1=3x^2-3x-17+x+3x^2=6x^2-2x-17
Mihaelap
a) 5x - 5 + 2x + 3 = 7x - 2
b) 3 - 3x + 2 - 3x = - 9x + 5
c) 3x² - 3x - 17 + x + 3x² + 1 = 6x² - 2x - 16 = 2(3x² - x - 8)

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