Question

Simplifique as expressões algébricas abaixo :

a) 4b + 3c - a + 4a - 3b - 2c =

b) 5a²b - 3c + 4d - 2d + 3c - 4a²b =

c) 4x²y + 6xy² =​

Answer 1

Resposta:

• a) 4b + 3c - a + 4a - 3b - 2c

• = 4a - a + 4a + 3c - 2c - 3b

• = 7a + 3c - 2c - 3b

• = 7a + c - 3b

• b) 5a²b - 3c + 4d - 2d + 3c - 4a²b

• = 5a²b - 4a²b - 3c + 3c + 4d - 2d

• = a²b - 3c + 3c + 4d - 2d

• = a²b + 4d - 2d

• = a²b + 2d

• c) 4x²y + 6xy²

• = 4xxy + 6xyy

• = 2 . 2xxy + 3 . 2xyy

• = 2xy ( 2x + 3y )