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Mathematics 19 Online
OpenStudy (anonymous):

(2√5 + 3√7)^2

OpenStudy (lgbasallote):

use le foil/distributive propert/binomial theorem which is (a+b)^2 = a^2 + 2ab + b^2 dont forget that in squaring 2 sqrt (5)..you square two and the sqrt (5)

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