4 4 factoring quadratic expressions part 2
TRANSCRIPT
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B Y : T U C K E R , T A N N E R , T R I S T O N
4-4 Factoring Quadratic Expressions
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Factoring a Perfect Square Trinomial
64x2 - 16x + 1
(8x)2 (8x - 1)2
Is the first term a perfect square?
Is the last term a perfect square?
Is the middle term twice the product of 8 and 1?
1
Check your Self
(8x-1) (8x-1)
FOIL
(8x)2 - 8x - 8x +(-1)-1
64x2 -16x +1
YES
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Factoring a Difference of Two Squares
25x2 - 49
25x2-49 = (5x)2 - 72
Find your perfect squares
= (5x + 7) (5x – 7)
= 25x2 - 49
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Got It?
Try Got It #5.
• 16x2 - 81
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Work on
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