Question

Factorise : a 2 + b 2 + 2ab + 2bc + 2ca

Answer 1

Answer:

Step-by-step explanation:

a² + b² + 2ab + 2bc + 2ac

We know, x² + y² + 2xy = (x + y)

Applying formula,we get

(a + b)² + 2(bc + ca)

(a + b)² + 2c(b + a)

(a + b) (a + b + 2c)