SOLUTION: (4x-5)<3> the number in the <> are exponents

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Question 31123: (4x-5)<3>
the number in the <> are exponents
Answer by brianunlv(12) About Me  (Show Source):
You can put this solution on YOUR website!
4x-5%29%5E3 is a perfect cube
using the formula for perfect cubes:
perfect cube (2 forms): A³ ± 3A²B + 3AB² ± B³ = (A ± B)³
we get: %284x%29%5E3+-+3%284x%29%5E2%285%29+%2B+3%284x%29%285%29%5E5+-+5%5E3
64x%5E3+-+3%2816x%5E2%29%285%29+%2B+3%284x%29%285%5E2%29+-+5%5E3
= 64x%5E3+-+240x%5E2+%2B+300x+-+125
regards,
Brian bird