An equation is used to show 2 expressions that are equal to each other.

An interior angle is an angle formed inside a polygon by two of its edges.

Vertically opposite angles are pairs of opposite angles formed when two lines intersect at a point. They are equal.

Checking and securing understanding of forming linear equations

Maths

Checking and securing understanding of simplifying

Checking and securing understanding of substitution

Further algebraic terminology

Checking and securing understanding of expanding a single bracket

Checking and securing understanding of factorising

Checking and securing understanding of solving and interpreting linear equations

Checking and securing understanding of changing the subject

Checking and securing understanding of the product of two binomials

Factorising a quadratic expression

Factorising using the difference of two squares

Solving quadratic equations by factorising

Problem solving with algebraic manipulation

In this unit, pupils learnt to solve quadratic equations by factorising and this skill will be required in the future unit through manipulating two simultaneous equations to find the solutions. For pupils studying the higher content, solving quadratic equations is required if one of the simultaneous equations is a quadratic.

In the prior unit, pupils used the distributive law to find the product of two binomials. In algebraic manipulation, pupils use apply this knowledge in order to factorise quadratics.

In algebraic manipulation, pupils use apply knowledge of the distributive law to find the product of two binomaials in order to factorise quadratics.

Algebraic manipulation

A rectangle has side lengths of $$3x + 5$$ and $$2x - 3$$. Write an expression for the perimeter of the shape.

A triangle has side lengths of $$x + 2$$, $$2x + 3$$, and $$3x + 4$$. Write an expression for the perimeter of the shape.

A regular quadrilateral (square) has side length $$4y - 5$$. Write an expression for the perimeter of the shape.

A rectangle has side lengths of $$5a - 6$$ and $$3a + 2$$. Write an expression for the perimeter of the shape.

A regular pentagon has side length $$2z + 1$$. Write an expression for the perimeter of the shape.

A regular hexagon has side length $$3n - 4$$. Write an expression for the perimeter of the shape.

Expand and simplify $$5(x - 2) - 2(3x + 4)$$

Simplify the expression $$\frac{x^2 - 9}{x - 3}$$

Fully factorise the expression $$5x + 20$$

Fully factorise the expression $$3x^2 - 12$$

Fully factorise the expression $$x^2 - 9$$

Fully factorise the expression $$2x^2 + 8x$$

Exit Quiz

A rectangle has side lengths of $$3x + 5$$ and $$2x - 3$$. Write an expression for the perimeter of the shape.