Factories: ar + br + at + bt

1.	Factories: ar + br + at + bt
Answer» ar + br + at + bt First group the terms together; = (ar + br) + (at + bt) = r(a + b) + t(a + b) = (a + b)(r + t) So, We get, ar + br + at + bt = (a + b)(r + t)

Answer»

ar + br + at + bt

First group the terms together;

= (ar + br) + (at + bt)

= r(a + b) + t(a + b)

= (a + b)(r + t)

So,

We get,

ar + br + at + bt = (a + b)(r + t)

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