Question

important formulas of algebraic expressions​

Answer 1

Answer:

Important Formulas in Algebra

a2 – b2 = (a – b)(a + b)

(a+b)2 = a2 + 2ab + b2

a2 + b2 = (a – b)2 + 2ab.

(a – b)2 = a2 – 2ab + b2

(a + b + c)2 = a2 + b2 + c2 + 2ab + 2ac + 2bc.

(a – b – c)2 = a2 + b2 + c2 – 2ab – 2ac + 2bc.

(a + b)3 = a3 + 3a2b + 3ab2 + b3 ; (a + b)3 = a3 + b3 + 3ab(a + b)

(a – b)3 = a3 – 3a2b + 3ab2 – b3

Answer 2

Answer:

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Explanation:

algebraic expressions.. handwriting LL be slightly worst...don't care it..heee