Question

Algebric expressions grade 8

Answer 1

Answer:

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

Identity II (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