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lukaslinder3529
28.08.2020 •
Mathematics
The sum of two number is seven and the sum of their cube is 133 find the sum of their squares
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Ответ:
The sum of their squares = 29.
Step-by-step explanation:
Let's us first find out the numbers
we must first break number 7:-
1+6=7
2+5=7
3+4=7
And other combinations when we change the number postion
°) now let us look which numbers cubes when added makes 133:-
A) First one 1+6=7
Sum of Cubes=1+216=217 (it does not satisfy our Conditions)
B) Another one 2+5=7
Sum of Cubes 8+125=133 (satisfy the condition)
C) Last one 3+4=7
Sum of cubes 24+64=88 (does not satisfy)
Now we know the numbers(2,5) so as per question we need to find out sum of their square
Square of 2=4
Square of 5=25
Therefore, the sum of there square is 4+25=29.
Ответ: