We cannot answer since we do not have the picture or diagram.
Number 4
6=2•6-6
-18=-2•6-6
Answer:
Answer is in the attachment..............
Step-by-step explanation:
The greatest common factor is 3x². The rest doesn't factor.
21x³y² -3x²y +75x⁴ = 3x²(7xy² -y +25x²)