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Find the value of
[tex]\[ 444^3 - 443 \times 444 \times 445 \][/tex]

A. [tex]\(444^2\)[/tex]
B. 444
C. -444
D. [tex]\(-444^2\)[/tex]


Sagot :

Let's find the value of the expression
[tex]\[ 444^3 - 443 \times 444 \times 445 \][/tex]

First, denote [tex]\( x = 444 \)[/tex]. Then the expression can be rewritten in terms of [tex]\( x \)[/tex]:
[tex]\[ x^3 - (x-1)x(x+1) \][/tex]

Looking closely at the term [tex]\( (x-1)x(x+1) \)[/tex], we see it represents the product of three consecutive integers.

Now let's compute each term separately:

1. Compute [tex]\( x^3 \)[/tex]:
[tex]\[ x^3 = 444^3 = 87528384 \][/tex]

2. Compute [tex]\( (x-1) \times x \times (x+1) \)[/tex]:
[tex]\[ 443 \times 444 \times 445 = 87527940 \][/tex]

Finally, we subtract the second term from the first:
[tex]\[ 444^3 - 443 \times 444 \times 445 = 87528384 - 87527940 = 444 \][/tex]

Thus, the value of the expression [tex]\( 444^3 - 443 \times 444 \times 445 \)[/tex] is [tex]\(\boxed{444}\)[/tex].

So the answer is B) 444.