landofgoldmine
landofgoldmine
09-03-2019
Mathematics
contestada
Factor 9y^2–(1+2y)^2
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Ammimochi
Ammimochi
09-03-2019
Rewrite it in the form a^2 - b^2, where a = 3y and b = 1 + 2y
(3y)^2 - (1 + 2y)^2
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