Question

3842*3842+3842-3843*842 calculează cu factor comun?
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Answer 1

Salutare!

$\bf 3842\cdot 3842+3842-3843\cdot 842=$

$\bf 3842\cdot (3842+1)-3843\cdot 842=$

$\bf 3842\cdot 3843-3843\cdot 842=$

$\bf 3843\cdot (3842-842)=$

$\bf 3843\cdot 3000=$

$\boxed{\bf 11.529.000}$

==pav38==