Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

Quantitative Reasoning

Topic

Algebra

Question:

If $a=12, b=-8$ and $c=-4$, then find the value of $a^3+b^3+c^3$

Options:

384

1152

-1448

2304

Correct Answer:

1152

Explanation:

We know that, if a + b + c = 0 then,

$a^3+b^3+c^3$ = 3abc

We have,

$a=12, b=-8$ and $c=-4$ so a + b + c = 0

$a^3+b^3+c^3$ = 3 × 12 × -8 × -4 = 1152