Question

Ai lm đg minh tik choa

Answer 1

\(\dfrac{2^{12}\cdot3^5-4^6\cdot9^2}{\left(2^2\cdot3\right)^6+8^4\cdot3^5}-\dfrac{5^{10}\cdot7^3-25^5\cdot49^2}{\left(125\cdot7\right)^3+5^9\cdot14^3}\)

\(=\dfrac{2^{12}\cdot3^5-2^{12}\cdot3^4}{2^{12}\cdot3^6+2^{12}\cdot3^5}-\dfrac{5^{10}\cdot7^3-5^{10}\cdot7^4}{5^9\cdot7^3+5^9\cdot7^3\cdot2^3}\)

\(=\dfrac{2^{12}\cdot3^4\left(3-1\right)}{2^{12}\cdot3^5\left(3+1\right)}-\dfrac{5^{10}\cdot7^3\left(1-7\right)}{5^9\cdot7^3\left(1+2^3\right)}\)

\(=\dfrac{1}{3}\cdot\dfrac{-2}{4}-\dfrac{-6}{9}\)

\(=-\dfrac{1}{6}+\dfrac{2}{3}=\dfrac{-1}{6}+\dfrac{4}{6}=\dfrac{3}{6}=\dfrac{1}{2}\)

Answer 2

Answer 3

nếu phát hiện lỗi thì bảo mik nhé :>>