Question

factorize :

16b²- 40b +25
​

Answer 1

16b²- 40b +25

$= 16 {b}^{2} - 20b - 20b + 25 \\ = 4b(4b - 5) - 5(4b - 5) \\ = (4b - 5)(4b - 5)$

Answer 2

Answer:

(4b-5)(4b-5)

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