Bonsoir (^^)
A = 2⁴×5-(10-12)²×15
A = 16×5-(-2)²×15 (2⁴ = 2×2×2×2 = 16 )
A = 80-4×15
A = 80-60
A = 20
B = 3.2×10⁴÷4×10³
B = 3.2×10⁷÷4
B = [tex] \frac{3.2* 10^{7} }{4} [/tex]
B = [tex] \frac{ \frac{32}{10 } * 10^{7} }{4} [/tex]
B = [tex] \frac{32 * 10^{6} }{4} [/tex]
B = 8×10⁶
B = 8000000
J'espère vous avoir aidé ^-^
