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(5^10×25^2)^3÷5^40=
Cu regulile de calcul
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Răspuns :

(5¹⁰×25²)³:5⁴⁰=

=(5¹⁰×(5²)²)³:5⁴⁰;

=(5¹⁰×5⁴)³:5⁴⁰;

=(5¹⁴)³:5⁴⁰;

=5⁴²:5⁴⁰;

=5²;

=25;

( 5 ^ 10 × 25 ^ 2 ) ^ 3 : 5 ^ 40 =

[ 5 ^ 10 × ( 5 ^ 2 ) ^ 2 ] ^ 3 : 5 ^ 40 =

( 5 ^ 10 × 5 ^ 4 ) ^ 3 : 5 ^ 40 =

( 5 ^ 14 ) ^ 3 : 5 ^ 40 =

5 ^ 42 : 5 ^ 40 =

5 ^ 2 = 25