Math Class note 2: Solving for x with different formulas plus factoring

There are different ways of solving for x. In second class of Applied Mathematics, we solved for X using five different formulas below.

a2 – b2 = (a – b)(a + b)

a3 – b3 = (a – b)(a2 + ab + b2)

a3 + b3 = (a + b)(a2 – ab + b2)

(a + b)2 = a2 + ab + b2

(a – b)2 = a2 – 2ab + b2

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