Question

Решите пожалуйста B1иС1

Answer 1

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Answer 2

B1
$(x ^{15} )^5*x^6/ x^{77} =x ^{15*5+6-77} =x^4=5^4=625$
C1
$(-2/5*a^2bc^3)^3*25ac^2=-8/125*a^6b^3c^9*25ac^2=-8/5*a^7b^3c ^{11} =$$-1,6a^7b^3c ^{11}$