Evaluate 30^3 + 20^3-50^3
Answers
Answered by
2
Answer:
Step-by-step explanation:
Add the co-efficients
30 + 20 - 50 = 0
If sum of coefficients is 0 then the sum of the product will be
3abc
= 3 x 30 x 20 x 50
= 90 x 1000
= 90000
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Answered by
2
30^3+(20-50)(20^2+1000+50^2)
30^3+(-30)(400+1000+2500)
27000+(-30)(3900)
27000+(-30)(3900)
27000-117000
-90000
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