SOLUTION: is there a short cut in solving the result of 125 cubed minus 125 squared. my grandson was in a math contest and someone solved the problem almost instantly.
How is that done?
Algebra.Com
Question 571740: is there a short cut in solving the result of 125 cubed minus 125 squared. my grandson was in a math contest and someone solved the problem almost instantly.
How is that done?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
is there a short cut in solving the result of 125 cubed minus 125 squared. my grandson was in a math contest and someone solved the problem almost instantly.
How is that done?
-----------------------
= 15625*124
= 62500*31
--------------
Or
=
I could do it either way
RELATED QUESTIONS
I am a mom trying to recall my high school math to help my son. I am having trouble... (answered by Alan3354)
What is the probability that a student in a college of 800 students is both a math major... (answered by 428225)
I don't undertand how to simplify radical expressions.I am in Algebra 2 and the problem... (answered by mananth,lwsshak3)
What number does the t stand for in each of the following equations:
a. 100=125-5t... (answered by jim_thompson5910)
The mean of 700 farmers in a particular area is $125 and standard deviation of $10. How... (answered by ewatrrr)
ON a recent grade 11 math contest, the mean score was 57.9 with a standard deviation of... (answered by Boreal)
So on one of my practice sheet, there is a task asking to compute log5√125 exactly, now (answered by Alan3354,Theo,MathTherapy)
In reference to Inverse Functions: How do you determine when to use the "short cut"... (answered by khwang,rapaljer)
the ratio of two similar solids are 729m cubed and 125 m cubed. the surface area of the... (answered by lynnlo)