Examine the steps for finding the product of (34)(13) in the example shown.
line 1: 30+4
line 2: ×10+3
line 3: 90+12
line 4: +300+40
line 5: 300+130+12
what are the corresponding steps used to find the product of (3x+4)(x+3)?
select one correct answer for each step.
line 4: 300x^2+40x
line 3: 9x+12
line 4: 3x^2+4x
line 2: x+3
line 3: 90x+12
line 2: 10x+3
line 1: 30x+4
line 1: 3x+4
line 5: 3x^2+13x+12
line 5: 300x^2+130x+12