Answer:
-18x²+3x+1
Step-by-step explanation:
To do this, we need to multiply 6x+1 by 1 and then 6x+1 by -3x:
(6x+1)(1)+(6x+1)(-3x)
Let's first do...
(6x+1)(1)
Distribute 1 to both of the terms inside of the parentheses:
6x(1)+1(1)
6x+1
Then...
(6x+1)(-3x)
Distribute the -3x to both of the terms inside of the parentheses:
6x(-3x)+1(-3x)
-18x²-3x
Then we add them together:
-18x²-3x+6x+1
-18x²+3x+1
