Question

URGENTE!!!

Calcule os produtos
a) 3(x+y)=

b) 7(x-2y) =

c) 2x(x+y) =

d) 4x (a+b) =

e) 2x(x²-2x+5) =

f) x . (a + b + c) =

g) xy . (-5x – 4y²) =

h) -3xyz . (a – b²) =

i) 3ax² . (ay – 2bx + cxy) =

Answer 1

a) 3(x+y) = 3x + 3y

b) 7(x-2y) =7x - 14y

c) 2x(x+y) = 2x² + 2xy

d) 4x (a+b) = 4ax + 4bx

e) 2x(x²-2x+5) = 2x³ - 4x² + 10x

f) x . (a + b + c) = ax + bx + cx

g) xy . (-5x – 4y²) = - 5x²y - 4xy³

h) -3xyz . (a – b²) = - 3axyz + 3b²xyz

i) 3ax² . (ay – 2bx + cxy) = 3a²x²y - 6abx³ + 3acx³y

_____

Espero ter ajudado