Question

without actually calculating the cubes,find the value of
${(12)}^{3} + {7}^{3} + {5}^{3}$
​

Answer 1

Answer:

dont know dude!!!!!!!!!

Step-by-step explanation:

Answer 2

Answer:

2196

Step-by-step explanation:

(a^3+b^3+c^3 )-3abc=(a+b+c)(a^2+b^2+c^2-ab-bc-ac)

then,

(a^3+b^3+c^3)= (a+b+c)(a^2+b^2+c^2-ab-bc-ac)- 3abc

12^3+7^3+5^5 = (24)(144+49+25-84-35-60)+1260

=(24)(39)+1260

=1728+1260

=2196

i solved it , you can check the answer is right or wrong by calculating 12^3+7^3+5^3=1728+343+125=2196

dude its correct ..