1004 X
992 calculate without actually calculating. Give me full answer for 100 points.
Answers
Answered by
1
Answer:
Step-by-step explanation:
Without actually calculating much, find the value of
(25)^3 - (75)^3 + (50)^3 ?
a little factoring will help...
(25)^3 - (3)^3 (25)^3 + (2)^3 (25)^3 = (25)^3[1 - (3)^3 + (2)^3] = (25)^3[1 - 27 + 8] =
(25)^3 [- 18]
now, you have to calculate !
get involved !
id est
[- 281250]
Answered by
5
==>1004×992
==>(1000+4)(1000-8)
==>1000^2+(4-8)1000+(4)(-8)
==>1000000-4000-32
=>>995968
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