Question

solve the following
13. without actually calculating the
the value of the follow
18³+12³-30³​

Answer 1

Answer:

We know that,

If (a+b+c)=0, then

a3+b3+c3 =3abc

Here, 18+12+(−30)=0

∴(18)

3

+(12)

3

+(−30)

3

=3(18)(12)(−30)=-19440 ans

thanks with brainlist

Answer 2

Answer:

-19,449

Step-by-step explanation:

1. 18 × 18 ×18 =5832
2. 12×12×12 =1728
3. 30×30×30=27000
4. 5832+1728-27000=-19449