Question Bank

Achieved

Solve the equation $x^2 - 2x - 15 = 0$.

Achieved

Solve to find the values of $x$ for the equation $x(x-5) = 0$.

Achieved

Solve to find the values of $x$ for the equation $(x+4)(x+1) = 0$.

Achieved

Solve to find the values of $x$ for the equation $2x(x-4) = 0$.

Achieved

Solve to find the values of $x$ for the equation $(x-4)(x-8)(x+1) = 0$.

Note that this is tecnnically a cubic equation (not a quadratic), but the same principle for solving applies

Achieved

Solve to find the values of $x$ for the equation $(x+5)(x-10)^2 = 0$.

Note that this is tecnnically a cubic equation (not a quadratic), but the same principle for solving applies

Achieved

Solve to find the value of $x$ in the equation $x(x-a) = 0$.

Achieved

Solve the following equation for $x$:

$ (x - 7)^2 = 16 $

Achieved

Solve the following equation for $y$:

$ (y + 1)^2 - 49 = 0 $

Merit

Solve the equation $5x^2 + 13x = 6$.

Merit

Solve the equation $(x+3)(x-1) = 12$.

Merit

Solve for x: $(x+5)(x-5) = 3x - 15$.

Merit

Solve the following equation for $x$:

$\frac{36}{x-5} = x-5$

Merit

Find the values of $x$ that solve the equation:

$x-4 = \frac{12}{x}$

Merit

Solve the equation $4x^2 + 5x - 6 = 0$.

Merit

Solve for $x$ in the equation $3x^2 - 10x - 8 = 0$.

Merit

Find the values of x for which $x(2x+3) = 4 - 4x$.

Merit

Solve the following equation for $y$:

$ \frac{\displaystyle 45}{\displaystyle y + 4} = y - 4 $

Merit

The right-angled triangle shown has a hypotenuse of $\sqrt{41}$ cm. Calculate this value of x.

Diagram
Excellence

Alice was exploring an ancient forest when she came across a wise, talking oak tree. Curious about its age, Alice asked how old it was.

The tree creaked and boomed in reply, "I am very old indeed! In 190 years' time, my age will be the square of my age 190 years ago!"

Determine the tree's current age.

Hint: $210 \times 171 = 35910$ and $171 + 210 = 381$.

Excellence

Both a square and a rectangle each have a perimeter of 44 cm. If their combined area is 238 cm², what are the dimensions of the rectangle?

Excellence

Four identical parallelograms make a pinwheel shape, as shown in the diagram. The area of the entire shape is 84 m². Find the perimeter of the shape.

Diagram
Excellence

The area of the right-angled trapezium shown below is 15 cm². Find the perimeter of the shape.

Diagram
Excellence

A right-angled triangle has side lengths which follow a linear sequence (i.e., they have a common difference). If the shortest side is 12 cm, what are the other two sides? You must use an algebraic method to find your answer.

Diagram