Question

3x + x + 2х при х= 1; 2; 3;

Answer 1

Ответ:

3*1+1+2*1=3+1+2=6(x это 1)

3*2+2+2*2=6+2+4=12(х это 2)

3*3+3+2*3=9+3+6=18(х это 3)

Answer 2

To evaluate the expression 3x + x + 2x for x = 1, 2, 3, we substitute the given values of x into the expression and simplify:

For x = 1: 3(1) + 1(1) + 2(1) = 3 + 1 + 2 = 6

For x = 2: 3(2) + 1(2) + 2(2) = 6 + 2 + 4 = 12

For x = 3: 3(3) + 1(3) + 2(3) = 9 + 3 + 6 = 18

Therefore, when x is equal to 1, 2, and 3, the expression 3x + x + 2x evaluates to 6, 12, and 18, respectively.