Bonjour pouvez vous m’aider pour cest questions svp merci. A 26-4x2+18:2+1 B 2x9x4-4x(7+2) C 42-2x(13,5-7,5)-(4,5+2x4) D 40-19x(23-(7-3)x7) E (65-18:(2x4,5))-(2

A= 26-4x2+18:2+1
= 26-8+9+1
= 28

B= 2x9x4-4x(7+2)
= 2x9x4-4x9
= 72-36
= 36

C= 42-2x(13,5-7,5)-(4,5+2x4)
= 42-2x6-(4,5-8)
= 42-2x6-(-3,5)
= 42-12+3,5
= 33,5

D= 40-19x(23-(7-3)x7)
= 40-19x(23-10x7)
= 40-19x(23-70)
= 40-19x(-47)
= 40+893
= 933