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2. Objectives:
1. identify whether or not an
expression is a perfect square
trinomial; and
2. factor perfect square trinomials
completely.
3. Tell whether the following expression is
a perfect square trinomial or not.
1. 𝑥2
+ 2xy + 𝑦2
2. 4𝑥2
+ 20x + 25
3. 𝑥2
+ 5x + 6
4. 9𝑥2
+ 30xy + 25𝑦2
5. 4𝑥2
+ 2xy + 𝑦2
PERFECT SQUARE
TRINOMIAL
PERFECT SQUARE
TRINOMIAL
NOT
NOT
PERFECT SQUARE
TRINOMIAL
4. PERFECT SQUARE TRINOMIAL
1. 𝑥2
+ 2xy + 𝑦2
( )2
+ 2( )( ) + ( )2
2. 4𝑥2
+ 20x + 25
( )2
+ 2( )( ) + ( )2
x yx y
2x 52x 5
FIRST TERM
PERFECT
SQUARE
MIDDLE TERM
TWICE THE PRODUCT
of first and last term
LAST TERM
PERFECT
SQUARE
(positive)(positive)