FOIL method Quiz 1

Question 1

Solve the question $$(3x - 5)(9x - 3y)$$ using FOIL method and tick the correct answer.

Accepted Answer

$$27{x^2} - 9xy - 45x + 15y$$

Answer

$$27{x^2} - 9y - 45x + 15y$$

Answer

$$27{x^2} + 9xy - 45x + 15y$$

Answer

$$27{x^2} + 9xy + 45x + 15y$$

Question 2

Choose the correct answer for $$(6{x^2} + 9{y^2})(2x{y^2} + 3{x^2}y)$$ using FOIL method.

Accepted Answer

$$12{x^3}{y^2} + 18{x^4} + 18x{y^4} + 27{x^2}{y^3}$$

Answer

$$ - 12{x^3}{y^2} + 18{x^4} + 18x{y^4} + 27{x^2}{y^3}$$

Answer

$$ - 12{x^3}{y^2} - 18{x^4} + 18x{y^4} + 27{x^2}{y^3}$$

Answer

$$ - 12{x^3}{y^2} - 18{x^4} - 18x{y^4} + 27{x^2}{y^3}$$

Question 3

Solve $$(9x - 3)(2x - 4) = 0$$ for $$x$$ using FOIL method.

Accepted Answer

$$2,\dfrac{1}{3}$$

Answer

$$2, - \dfrac{1}{3}$$

Answer

$$ - 2, - \dfrac{1}{3}$$

Answer

$$ - 2,\dfrac{1}{3}$$

Question 4

Tick the correct answer for $$\dfrac{2}{3}(3y - 9)(4x - 8) = 0$$ using FOIL method

Accepted Answer

$$y(x - 2) - 3x + 6 = 0$$

Answer

$$ - y(x - 2) - 3x + 6 = 0$$

Answer

$$ - y(x - 2) + 3x + 6 = 0$$

Answer

$$y(x - 2) - 3x = 6$$

Question 5

Solve $$ - 2(9y - 6)(8y + 2) = 0$$ using FOIL method.

Accepted Answer

$$ - 72y + 15y + 12 = 0$$

Answer

$$72y + 15y + 12 = 0$$

Answer

$$72y - 15y + 12 = 0$$

Answer

$$72y - 15y - 12 = 0$$