Question

efectuați a) (2+2*3)*{2*2 la puterea a 2*2 la puterea 43-2la puterea 46+[3 la puterea 148:3la puterea 43-(3 la puterea a 5)totul la 21]+16}

Answer 1

( 2 + 2 x 3 ) x  { 2 x 2² x 2⁴³ - 2⁴⁶ + [ 3¹⁴⁸ : 3⁴³ - ( 3⁵ ) ²¹ ] + 16} = 128

= ( 2 + 6 ) x [ 2 ⁽ ¹ ⁺ ² ⁺ ⁴³ ⁾  - 2⁴⁶ + ( 3 ⁽ ¹⁴⁸ ⁻ ⁴³ ⁾ - 3 ⁵ ˣ ²¹ ) + 16 ] =

= 8 x [ 2⁴⁶ x ( 1 - 1 ) + ( 3¹⁰⁵ - 3¹⁰⁵ ) + 16 ] =

= 8 x ( 2⁴⁶  x 0 +  0 + 16 ) =

= 8 x 16 =

= 128