Answer:
makes no sense
Step-by-step explanation:
To make a square for x²+bx=c, add(

)²on both side
in this case, b is-3/4, half of b is -3/8, and (-3/8)² is 9/64, so you add 9/64 to both side.
Answer:
3n+12
Step-by-step explanation:
(n+4)3=
3n+12
Just multiply the number and variable inside the parentheses by 3