Question

Упрости выражения 2(х+3)+5(х+1) помагите

Answer 1

2(x+3)+5(x+1)=2*x+2*3+5*x+5*1=
=2x+6+5x+5=(2x+5x)+(6+5)=7x+11

Answer 2

2(х+3)+5(х+1)=2×х+2×3+5×х+5=
=2х+6+5х+5=(2х+5х)+(6+5)=7х+11