Bonjour
(-8) - (-4) x 7= -8 + 4 x 7 = -8 + 28
= 20-5 x 3² +7 = -5 x 9 +7= -45 +7
= -38-7 x 2 + (-8)² = -14 + 64
= 50
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-8 +4 X 7 tu calcules la multiplication qui est prioritaire
-8 +28 = +20
-5 X 3² +7 la puissance, puis la multiplication
-5 X 9 +7
-45 +7 = -38
-7 X 2 + (-8)² -8² = 64
-14 +64 = +50
Bonjour
(-8) - (-4) x 7
= -8 + 4 x 7
= -8 + 28
= 20
-5 x 3² +7
= -5 x 9 +7
= -45 +7
= -38
-7 x 2 + (-8)²
= -14 + 64
= 50