Question

viết tích sau thành 1 lũy thừa

(-8).3³.(-7).49

Answer 1

Ta có: (-8).3³.(-7).49 = (-2)³.3³.(-7)³ = (-2.3.-7)³ = 42³

Answer 2

\(\left(-8\right)\cdot3^3\cdot\left(-7\right)\cdot49=\left(-3\right)^3\cdot3^3\cdot7\cdot7^2=\left(-3\right)^3\cdot3^3\cdot7^3=\left(-3\cdot3\cdot7\right)^3=\left(-63\right)^3\)