gaaaans gaaaans 20-02-2021 Mathematics contestada Which equations are correct? Select each correct answer. 5x4(4x2)=20x6 6a5(6a5)=36a25 3z7(4z2)=12z9 6b4(−3b4)=−18b8Which equations are correct? Select each correct answer. 5x4(4x2)=20x6 6a5(6a5)=36a25 3z7(4z2)=12z9 6b4(−3b4)=−18b8