Answer:3x^2+3x
Step-by-step explanation:
3x=3x+0
(3x+0)(x+1)
Multiply the numbers on the left of the plus signs within each parentheses.
3x*x= 3x^2
Then the left of the plus sign in the 1st set by the right in the 2nd set.
3x*1= 3x
Then right if first by left of second
0*x=0
Right of 1st and right of 2nd.
0*1=0
Now add each piece.
3x^2+3x+0x+0
Simplify
3x^2+3x
