Determine the value of (42)3.
Answers
Answered by
3
42^3
=(40+2)^3
= 40^3 +2^3+3*40*2(40+2)
=64000+8+240*42
=64000+8+1008
=65016
we used (a+b)^3= a^3+ b^3+3ab(a+b)
=(40+2)^3
= 40^3 +2^3+3*40*2(40+2)
=64000+8+240*42
=64000+8+1008
=65016
we used (a+b)^3= a^3+ b^3+3ab(a+b)
Answered by
3
(42)3 = 42 x 3 = 126
The brackets indicate that the number inside has to be multiplied with the number outside.
Note: (42)3 is not the same as (42) + 3. In this case you just have to add the numbers.
The brackets indicate that the number inside has to be multiplied with the number outside.
Note: (42)3 is not the same as (42) + 3. In this case you just have to add the numbers.
mysticd:
it is not 42×3, it is 42 cube
Oh okay, my bad. But why does the bracket say 42 x 3? Anyway, I'll edit my answer
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