bonjour
A = ( 5/2 x 3 /4 + 1 ) : ( 1/10 + 7/5 )
A = ( 15/8 + 1 ) : ( 1/10 + 14/10 )
A = ( 15/8 + 8/8 ) : 15 /10
A = 23/8 x 10/15
A = 230/120
A = 23/12
A = 23/12 = 1.917
B = ( 2 ² + 7 035 ⁰ )³ - ( 2 ⁴ + 7.5 )²
B = ( 2 ⁶ + 7 035 ⁰) - ( 2 ⁸ + 7.5 ² )
B = (64 + 1 ) - ( 256 + 56.25 )
B = 65 - 312.25
B = - 247.25
B = - 2.4725 * 10 ²