Factorisation

Use your knowledge about algebra and identities to determine whether the following statement is correct.

5 x + 4y = 9xy

• CORRECT

• NOT CORRECT

Expand (x - 8) ( x - 8)

• x² - 64

• x² + 64

• x² - 16x + 64

• x² + 16x + 64

Expand ( x + 2)².

• x² + 2²

• x² + 2x +2

• x² + 4x +2

• x² + 4x +4

Expand (x +5)(x−5).

• x²−5

• x²+5

• x²+25

• x²−25

Expand (x−4)².

• x² −8x+16

• x² −8x−16

• x² +8x+16

• x² −16

Expand (2x + 3)².

• 2x² +12x + 6

• 2x² +12x + 9

• 4x² +12x + 9

• 4x² +12x + 6

Expand (4x − 5)(4x + 5).

• 4x² − 25

• 4x² + 25

• 16x² + 25

• 16x² − 25

Factorise 4x + 16.

• 4(x + 4)

• 4(x - 4)

• x + 4

• 4x + 4

Factorise the above expression.

• 2(a-3)

• 2(2a-3)

• 4(a-3)

• 4(a-2)

Factorise the above expression.

• 3(3x-1)

• 3(-1-3x)

• 3(-3x+1)

• 3(1+3x)