Question

Alguém me ajuda por favor



Calcule b) (5x-2).(2x-1)

Answer 1

10X elevado a 2 - 9X + 2

Answer 2

5x−2)(2x−1)=

5x⋅2x+5x(−1)+(−2)⋅2x+(−2) (-1) 5⋅2xx−5⋅1⋅x−2⋅2x+2⋅1=10x2−9x+2

resposta

10x2-9×+2