Question

Factorise the trinomial b sq. +14b +49​

Answer 1

Answer:

(b+7)^2

Step-by-step explanation:

using identity (a+b)^2 = a^2 +( 2 x b x a) + b^2

b^2 +14b +49​

b^2 + (2 x 7 x b) + 7^2

hence, ( b + 7 )^2