Question

Efectuati calculele: a) (-2) la patrat x (-15:3+4)
b) (-13+5):(-2)totul al 3 +(-1) totul la 5
c) -3+2 x(-6:2+1)
Va rog rpd dau coroana

Answer 1

a ) ( - 2 )² × ( -15 : 3 + 4 ) =

= 2² × ( -5 + 4 )

= 2² × ( -1 )

= -2²

= -4

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b ) { [ ( -13 + 5 ) : ( -2 ) ]³ + ( -1 ) }⁵ =

= { [ ( -8 ) : ( -2 ) ]³ -1 }⁵

= [ 4³ - 1 ]⁵

= [ 64 - 1 ]⁵

= 63⁵

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c ) -3 + 2 × ( -6 : 2 + 1 ) =

= -3 + 2 × ( -3 + 1 )

= -3 + 2 × ( -2 )

= -3 - 4

= -7