Question

Ridicati la putere:
a) (-3xy²)²
b) $(\sqrt{5 a^{2} }b )^{4}$

Answer 1

a)(-3xy²)²=(-3)² *x² *(y²)²=9x²$y^{4}$
b)(radical din5 a la a doua b)totul la a 4=25ala a 8 b la a 4