Question

A)3.(x+y)B)7.(x-2y)C)2x.(x+y)D)4x.(a+b)E)2x.(x²-2x+5)F)(x+5).(x+2)G)(3x+2).(2x+1)H)(x+7).(x-4(

Answer 1

Resposta:

A)3.(x+y)

$3x + 3y$

B)7.(x-2y)

$7x - 14y$

C)2x.(x+y)

$2 {x}^{2} + 2xy$

D)4x.(a+b)

$4ax + 4bx$

E)2x.(x²-2x+5)

$2 {x}^{3} - 2 {x}^{2} + 10x$

F)(x+5).(x+2)

${x}^{2} + 2x + 5x + 10 \\ {x}^{2} + 7x + 10$

G)(3x+2).(2x+1)

$6 {x}^{2} + 3x + 4x + 2 \\ 6 {x}^{2} + 7x + 2$

H)(x+7).(x-4)

${x}^{2} - 4x + 7x - 28 \\ {x}^{2} + 3x - 28$