Question

Simplify: (ab + bc) (ab –bc) PLS FAST STEP BY STEP

Answer 1

Answer:

b²(a+c)(a-c)

Step-by-step explanation:

It is an Identity that (a-b)(a+b)=a²-b²

using that;

(ab+bc)(ab-bc)=(ab)²-(bc)²

=a²b²-b²c²

=b²(a²-c²)

=b²(a+c)(a-c){Using the same identity)