Question

Efectuați : a) [(-3)^4 -3•(-3)^2-3•(-3+3•3^2)]^2

Answer 1

[$(-3)^{4}$ - 3*(-3)² -3(-3+ 3*3²)]²=
=[81-27-3(-3+27)]²=
=[54-3*24]²=
=[54-72]²=
=(-18)²=
=324