Asked by Luna
Hi, could you please provide a step by step solution explaining how to do this:
[(a^2 - b^2 + a + b)/(a - a^3)] x [(1-a^2)/(a - b + 1)]
The answer should be (a + b)/ a
Thanks
[(a^2 - b^2 + a + b)/(a - a^3)] x [(1-a^2)/(a - b + 1)]
The answer should be (a + b)/ a
Thanks
Answers
Answered by
bobpursley
do some factoring
[(a^2 - b^2 + a + b)/(a - a^3)] x [(1-a^2)/(a - b + 1)]=
[(a+b)(a-b) + (a + b))/a(1 - a^2))] x [(1-a^2)/(a - b + 1)]
(a+b)[(a-b) +1 )/a(1 - a^2))] x [(1-a^2)/(a - b + 1)]
(a+b)/a
check all that.
[(a^2 - b^2 + a + b)/(a - a^3)] x [(1-a^2)/(a - b + 1)]=
[(a+b)(a-b) + (a + b))/a(1 - a^2))] x [(1-a^2)/(a - b + 1)]
(a+b)[(a-b) +1 )/a(1 - a^2))] x [(1-a^2)/(a - b + 1)]
(a+b)/a
check all that.
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