Question

(a+b)²=? expand given equation

Answer 1

(a+b)^2=(a+b)*(a+b)
(a+b)^2=a*a+a*b+b*a+b*b
(a+b)^2=a^2+2ab+b^2

Answer 2

(a+b)^2= { a}^{2} + {b}^{2} + 2ab

i hope it helps to you ☺☺

(a+b)^2=a^2+b^2+2ab


Identity I: (a + b)2 = a2 + 2ab + b2
Identity III: a2 – b2= (a + b)(a – b)
Identity IV: (x + a)(x + b) = x2 + (a + b) x + ab.
Identity V: (a + b + c)2 = a2 + b2 + c2 + 2ab + 2bc + 2ca.
Identity VI: (a + b)3 = a3 + b3 + 3ab (a + b)