Answer:
20y² + 20y + 1
Step-by-step explanation:
Given
5(2y + 1)² - 4 ← expand the factor using FOIL
= 5(4y² + 4y + 1) - 4 ← distribute parenthesis by 5
= 20y² + 20y + 5 - 4
= 20y² + 20y + 1
Answer:20y2+20y+1
Let's simplify step-by-step.
5(2y+1)2−4
Distribute:
=20y2+20y+5+−4
Combine Like Terms:
=(20y2)+(20y)+(5+−4)
=20y2+20y+1
