Hi Ramlah ,
Did you get the solution ?
Hey so in here, there's really two cases:
We see that a depends on b.
So if b>0, then obviously a > b.
If b<0, we see that the quadratic term 5b^2 is always positive and grows way quicker than the linear term 10b, and the final sum is helped by +7. You can test this out with the largest possible value for b, b=-1 assuming and b are integers. So a >0 and thus a>b here too.
So in the final answer, we see that a > b for both situations. So choice that says a>b is correct
There are currently 1 users browsing this thread. (0 members and 1 guests)