if f(x)= x-a/x + x/x-b then find the value of f(a+b/2)
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Answer:
15x3 + 37x2 + 53x + 55 Simplify —————————————————————— 3x + 5
Checking for a perfect cube :
3.1 15x3 + 37x2 + 53x + 55 is not a perfect cube
Trying to factor by pulling out :
3.2 Factoring: 15x3 + 37x2 + 53x + 55
Thoughtfully split the expression at hand into groups, each group having two terms :
Group 1: 53x + 55
Group 2: 15x3 + 37x2
Pull out from each group separately :
Group 1: (53x + 55) • (1)
Group 2: (15x + 37) • (x2)
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