Question

ex1)Daca x=23 si y+z=41 aflati a) xy+xz b) 5x+3y+3z . ex2) calculati scotand factor comun : 88•53+2•53+10•53-3•100

Answer 1

Răspuns:

Explicație pas cu pas:

ex1) Daca x=23 si y+z=41 aflati

a) xy+xz = x*(y + z) = 23*41 = 943

b) 5x+3y+3z = 5x + 3*(y + z) = 5*23 + 3*41 = 115 + 123 = 238

ex2) calculati scotand factor comun :

88•53+2•53+10•53-3•100

= 53*(88 + 2 + 10) - 3*100

= 53*100 - 3*100

= 100*(53 - 3)

= 100*50

= 5000