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ridicati la putere:
a) (-3[tex] xy^{2} [/tex])[tex] ^{2} [/tex]
b) [tex] (\sqrt{5} a^{2}b) ^{4} [/tex]


Răspuns :

a.   = ( -3)² · x² · (y² )² = 9x²y⁴
b.   = (√5²)² · ( a² )⁴ ·(b )⁴ = 5²a⁸b⁴ =25a⁸b⁴