Combining like terms Quiz 1

Question 1

Combine the like terms and solve $$8x - 3y + x$$.

Accepted Answer

$$9x - 3y$$

Answer

$$ - (9x - 3y)$$

Answer

$$ - 9x - 3y$$

Answer

$$9x + 3y$$

Question 2

Taking like terms together solve $$2(72x - 9x + 6y - 2x + 3x) = 108$$

Accepted Answer

$$32x + 3y - 27 = 0$$

Answer

$$32x + 3y =  - 27$$

Answer

$$ - 32x + 3y =  - 27$$

Answer

$$ - 32x + 3y - 27 = 0$$

Question 3

Solve $$(7y - 6x + 4)(2x + 9y - 8) = 0$$ and tick the correct answer.

Accepted Answer

$$ - 40xy + 63{y^2} - 12{x^2} - 20y + 56x - 36 = 0$$

Answer

$$ - 40xy + 63{y^2} - 12{x^2} - 20y + 56x =  - 36$$

Answer

$$40xy + 63{y^2} - 12{x^2} - 20y + 56x =  - 36$$

Answer

$$ - 40xy - 63{y^2} - 12{x^2} - 20y + 56x - 36 = 0$$

Question 4

Solve for $$2x + 2y + {x^2} - x + {x^2}$$ and tick the correct answer.

Accepted Answer

$$x + 2{x^2} + 2y$$

Answer

$$x + 2y$$

Answer

$$x + 2y + {x^2}$$

Answer

$$2x + 2y + {x^2}$$

Question 5

Tick the correct answer for $$3(x + 3) + 9(y + 2) + 2(x + y)$$.

Accepted Answer

$$5x + 27 + 11y$$

Answer

$$5y + 27 + 11x$$

Answer

$$ - 5x + 27 + 11y$$

Answer

$$ - 5x + 27 - 11y$$