Question

Determine o valor numerico das seguintes expressoes algebricas

a) 2x + 3x +x -2 sendo X=3

b)-4x - 2y+ xy sendo X=3 e Y=2

Answer 1

a)   6+9+3-2= 16

b) -12-4+6= -10

Answer 2

A)-> 2×3 + 3×3 + 3-2 = 16
/->6. /->9. /->1




B)-> -4 × 3 - 2 × 2 + 3×2 = -10
/-> -12 \-> -4. /-> 6