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