Question

Calcule o valor numérico das expressões algébricas 3×2-2×5×-1,para×=3/4

Answer 1

3•3/4•2-2•3/4•5•3/4-1
9/4•2-2•20/4•3/4-1
18/4 - 2 • 60/16 -1
18/4 - 120/16 -1


36. 240. 204
—- - —— = ——. = 12,75
16 16 16


12,75 -1 = 11,75



Espero que esteja certo rsrs