Question

calculati folosind scoatera unui factor comun:a)17×213+17×37-17×50;b)302×25-25×59+57×25;c)146×85-85×355​

Answer 1

Răspuns:

Explicație pas cu pas:

a) (17x213) + (17x 37) - ( 17x50)=

17 x (213+37-50)=

17x (240-50)

17x 190=

3230

Answer 2

Răspuns:

A) 17*213+17*37-17*50=

17(213+17-17*50)=

17(213+17-850)=

17*230-850=

3910-850=3060

B) 302*25-25*59+57*25=

25(302*59+57)=

25(17818+57)=

25*17875=446875

C) 146*85-85*355=

85(146*355)=

85*51830=4405550