Factor 16y^2-25z^2

Math
16y2-25z2
Rewrite 16y2 as (4y)2.
(4y)2-25z2
Rewrite 25z2 as (5z)2.
(4y)2-(5z)2
Since both terms are perfect squares, factor using the difference of squares formula, a2-b2=(a+b)(a-b) where a=4y and b=5z.
(4y+5z)(4y-(5z))
Multiply 5 by -1.
(4y+5z)(4y-5z)
Factor 16y^2-25z^2

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