Grade 7 Math Expansion

Simplify the expression: 3x + 2y - 4x + 5y

• 7x - y

• -x + 7y

• -x + 3y

• 2x + 7y

Expand the expression: (2x + 3)(4x - 5)

• 8x^2 + 2x + 5

• 8x^2 - 2x - 15

• 8x^2 + 2x + 15

• 8x^2 + 2x - 15

Factorize the expression: 6x^2 - 9x

• 3x(2x - 3)

• 3x(2x + 3)

• 2x(3x - 2)

• 3x(3x - 2)

Solve the equation: 2(x + 3) = 10

• x = 5

• x = 2

• x = 12

• x = 8

Expand the expression: (a + b)^2

• a^2 + b^2

• a^2 + 2ab - b^2

• a^2 - 2ab + b^2

• a^2 + 2ab + b^2

Simplify the expression: 4(x - 2) + 3(2x + 5)

Factorize the expression: 9x^2 - 16

• (3x + 4)(3x + 4)

• (3x - 4)(3x + 4)

• (3x - 4)(3x - 4)

• (3x + 4)(3x - 4)

Solve the equation: 3(2x - 4) = 18

• 10

• 7

• 3

• 5

Expand the expression: (3x - 2)^2

• 9x^2 - 4

• 9x^2 + 12x + 4

• 9x^2 - 12x - 4

• 9x^2 - 12x + 4

Simplify the expression: 2(3x + 4) - 5(2x - 1)

• -4x + 13

• -2x + 13

• -6x + 13

• -4x + 9