Svp j ai besoin d aide pour l exercice 64

a) (-3)au carré+6 x2au carré
=9+6x4
=9+24
=33
b) 7au carré-5au carréx2au cube
=49-25x8
=49-200
= -151
c) (-0.4)au carré x 10au cube -5 x3au carré+(-3)au cube x2
= 0.16x1000-5x9+27x2
= 160-45+54
= 115+54
= 169

a) (-3)²+6x2²
=9+6x4
=9+24
=23

b)7²-5²x2^3
=49-25x8
=49-200
=-151

c)(-0,4)²x10^3-5x3²+(-3)^3x2
=0,16x1000-5x9-27x2
=160-45-54
=61