Distributive property

Maths

Quadratic expressions (9.9)

Choose the word which best fills the gap: When we ________ double brackets every term in the first bracket must be multiplied by every term in the second bracket.

Cala says (x+2)(x+4) is the same as (x+4)(2+x). Is she correct?

No, Stacey is incorrect, there are more than 2 different rectangles.

No, Stacey is incorrect, there is only 1 possible rectangle.

The length and width of a rectangle add to 4cm. Stacey thinks only 2 different rectangles are possible. Do you agree?

A rectangle's length is 2cm greater than its width. Which expression gives the area?

A triangle's height is 4 times greater than its base. Which expression gives the area?

The length and width of a rectangle add to 14 cm. Which expression gives the area?

The length and width of a rectangle add to 14 cm. What is the largest possible area?

A triangle has a base and height that sum to 20cm. What is the upper bound of the triangle's area?

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Distributive property

Lesson outcome