Question

(3×15la puterea a 12+2×15la puterea a 12 ):5la puterea 13

Answer 1

$(3 \times 15 {}^{12} + 2 {}^{} \times 15 {}^{12} ) \div 5 {}^{13} =$
$5 \times 15 {}^{12} \div 5 {}^{13} =$
$\frac{5 \times 15 {}^{12} }{5 {}^{13} } =$
$\frac{5 {}^{12} }{5 {}^{12} } =$
$3 {}^{12}$

Answer 2

( 3 x 15¹² + 2 x 15¹² ) : 5¹³ = 3¹²

= 15¹² x ( 3 + 2 ) : 5¹³ =

=  ( 3 x 5 )¹² x 5 : 5¹³ =

= 3¹² x 5 ⁽ ¹² ⁺ ¹ ⁾ : 5¹³ =

= 3¹² x 5¹³ : 5¹³ =

= 3¹²