Question

in care dintre urmatoarele expresii pot fi omise semnele de inmultire? scrietile prescurtat.
a)4*8=? b)n*6=? c)x*(y+5)*2=? d)m*n*2*1=?
4*x=? 3*a*b=? 5*7*10=? a*2*(3+b)=?

Answer 1

4 x8 = 4x 8
n x 6 = 6n
x x ( y + 5 ) x 2 = ( xy + 5x ) x 2
m xn x2 x 1 = 2 mn x 1 =2mn
4 x x = 4x
3 x a xb = 3ab
5 x7 x10 = 5 x7 x10
a x 2 x ( 3 + b ) = 2a x ( 3 + b )

Answer 2

in b)n*6=n6; in e) 4x f)3ab atat