Упростите выражение: 1) (-b^5)^3 * (-b^4)^7 : b^12 2) x^2 * (x^3)^8 : x^11 / x^13 / - Дробная Черта. Created by kirsakov. algebra-ru

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kirsakov @kirsakov

September 2021 1 4 Report

Упростите выражение:
1) (-b^5)^3 * (-b^4)^7 : b^12
2) x^2 * (x^3)^8 : x^11 / x^13

/ - Дробная Черта

Answers & Comments

maksimcat

Verified answer

$(-b^5)^3*(-b^4)^7:b^{12}=(-b^{15})*(-b^{28}):b^{12}=b^{15+28-12}=b^{31}\\ \\ x^2*(x^3)^8:x^{11}/x^{13}=\frac{x^2*x^{24}}{x^{11}*x^{13}} =\frac{x^2*x^{24}}{x^{24}} =x^2$

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