svp je dois calculer 6-4(1/4-1) au carré

6-4(1/4-1)²6 -4 ( 1/4-4/4)²
= 6 -4 (-3/4)²
= 6 -4 (9/16)
= 6- 9/4
= 24/4-9/4
=15/4

6 - 4 x (1/4 - 1)²
= 6 - 4 x (1/4 - 4/4)²
= 6 - 4 x (- 3/4)²
= 6 - 4 x 9/16
= 6 - 36/16
= 24/4 - 9/4
= 15/4