Room 28
Learning Objectives
Grade A
To be able to explain how to factorise and solve quadratic expressions of the form ax2 + bx + c (non-monic quadratics)
Can you explain your method and how to check your answer?
To be able to demonstrate how to factorise quadratics of the form
ax2 - c where "a" and "c" are square numbers (the difference of two squares).
Can you explain your method and how to check your answer?
To be able to explain how to solve a quadratic equation of the form
ax2 + bx + c = 0 by the quadratic formula.
How do you identify the particular parts of the equation?
Grade A*
To be able to solve a quadratic equation obtained from manipulating algebraic fractions where the variable appears in the denominator.
How can you rearrange the equation into a quadratic form?
Resources
Grade A
Introduction to some methods of solving Non-monic Quadratics
Ten Ticks 9-10, 2 page 39 (section E)
Difference of two squares
Solve quadratic equations using the quadratic formula.
Grade A*
Homework
Explain the three methods of solving quadratic equations.
Learning Objectives for next lesson:
Grade A
To be able to recall and use the rules of surds to simplify surds.
Can you write √28 in a simpler way?
Grade A*
To be able to manipulate expressions containing surds and rationalise denominators.
What the another way of writing √3/3?
