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Mathematics 19 Online
OpenStudy (anonymous):

Help <3 :)

OpenStudy (anonymous):

OpenStudy (anonymous):

area of square=side squared

Parth (parthkohli):

(2x - 1)^2 => 4x^2 - 4x + 1 We know that (a - b)^2 = a^2 + b^2 - 2ab. That's why I got this.

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