Question

Am si eu doua probleme va rog frumos!!!

1). Rezolvati in Q ecuatia:
|x+5| = 3.

2). Am depus la banca 1.200 lei, cu o dobanda anuala de 20%. Ce suma voi avea dupa 1 an?

Answer 1

1) x+5=3
x=3-5
x=-2
x+5=-3
x=-3-5
x=-8
S={-8,-2}

2)1200+1200x20/100=1200+240=1440 lei