Question

Expand and simplify 5(2y+1)^2 -4

Answer 1

Answer:20y2+20y+1

Explanation:

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)+(5+−4)

=20y2+20y+1

Answer 2

20y² + 20y + 1

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