Answer:
Expanded: 4x^2+20x+25
When simplified it changes back, (2x+5)^2
Step-by-step explanation:
4x² + 20x + 25
Given
(2x + 5)²
= (2x + 5)(2x + 5)
Each term in the second factor is multiplied by each term in the first factor, that is
2x(2x + 5) + 5(2x + 5) ← distribute both parenthesis
= 4x² + 10x + 10x + 25 ← collect like terms
= 4x² + 20x + 25
