Sagot :
Réponse :
Explications étape par étape :
Bonjour,
xemples :
A = (-3) x (-2) x(-5) = - 30
Exercice 5:
B = (7) x (+9) x (-2,5) x (-0,25) = + 39,375
A = (-2)³ = - 8
B=(-0,25)^4 =+ 3,90625 X 10 ^-3
C = (+3)³ = + 27
Réponse :
bonjour
A = ( - 3 ) x ( - 2 ) x ( - 5 ) = - 30
B = 7 x 9 x ( - 2.5 ) x ( - 0.25 ) = 39.375
( 5 x 9 * - 5 ) / ( - 3 * - 6 - 0.5 * - 2.5 )
= - 225 / 22.5
( - 3 )² = 9
( - 5 ) ³ = - 125
( - 2 ) ³ = - 8
( - 0.25 ) ⁴ = 0.00390625 = 3.90625 x 10 ⁻³
3 ³ = 27