Find the value of (25)3 + (-29)3 + (4)3
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → -8700
Identify the Pattern
Let:
- $a = 25$
- $b = -29$
- $c = 4$
Check the Sum of the Variables
We know that if $a + b + c = 0$, then the following identity holds:
$a^3 + b^3 + c^3 = 3abc$
Let's check the sum:
$a + b + c = 25 + (-29) + 4$
$a + b + c = 25 - 29 + 4 = 0$
Apply the Identity
Since the sum is $0$, we can calculate the value as:
$\text{Value} = 3 \times (25) \times (-29) \times (4)$$
To make it easier, rearrange the multiplication:
$\text{Value} = 3 \times (-29) \times (25 \times 4)$
$\text{Value} = 3 \times (-29) \times 100$
$\text{Value} = -87 \times 100$
$\text{Value} = -8700$
Final Answer:
The value of $(25)^3 + (-29)^3 + (4)^3$ is $-8700$.