ar + br + at + bt = ………….. A) (r + t) (b – a) B) (r – t)

1.	ar + br + at + bt = ………….. A) (r + t) (b – a) B) (r – t) (r + a)C) (r + t) (a +b) D) (r – t) (a – b)
Answer» C) (r + t) (a +b) Correct option is (C) (r+t) (a+b) ar+br+at+bt = r(a+b) + t(a+b) = (a + b) (r + t)

ar + br + at + bt = ………….. A) (r + t) (b – a) B) (r – t) (r + a)C) (r + t) (a +b) D) (r – t) (a – b)

Answer»

C) (r + t) (a +b)

Correct option is (C) (r+t) (a+b)

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

= (a + b) (r + t)