PRUEBA 4- SEPTIMO

Multiplica: (2x + 3)(x - 4)

• 2x^2 + 5x + 12

• 2x^2 + 5x - 12

• 2x^2 - 7x + 12

• 2x^2 - 5x - 12

Suma: (5x^2 + 2x) + (3x^2 - 4x)

• 8x^2 - 2x

• 2x^2 - 2x

• 8x^2 + 4x

• 6x^2 + 6x

Resta: (7x - 2) - (3x + 5)

• 3x - 7

• 4x + 3

• 4x - 7

• 10x - 3

Divide: (6x^2 + 9x) ÷ 3x

• 2x + 3

• 6x + 9

• 3x + 3

• 2x + 2

Simplifica: 4x^2 + 8x - 2x^2

• 2x^2 + 6x

• 2x^2 + 8x

• 4x^2 + 8x^2

• 8x - 2x^2

Evalúa: 3x + 5 cuando x = 2

• 11

• 7

• 9

• 13

Multiplica: (x + 1)(x + 2)

• x^2 + 4x + 2

• x^2 + 2x + 1

• x^2 + 3x + 2

• x^2 + x + 2

Suma: (4x^2 - 3) + (2x^2 + 5)

• 4x^2 + 5

• 5x^2 + 2

• 6x^2 + 2

• 8x^2 - 3

Resta: (8x^2 + 4) - (3x^2 + 2)

• 5x^2 + 4

• 3x^2 + 2

• 8x^2 + 2

• 5x^2 + 2

Divide: (10x^3 + 5x^2) ÷ 5x^2

• 2x + 2

• 2x + 1

• 5x + 0

• 3x + 1