Structure of Quadratic Expressions

Factor:  x² + x - 42

• (x + 42)(x - 1)

• (x + 6)(x - 7)

• (x + 7)(x - 6)

• (x + 1)(x - 42)

Factor:  x² - 5x - 6

• (x - 6)(x - 1)

• (x - 2)(x + 3)

• (x - 3)(x + 2)

• (x + 1)(x - 6)

x² + 7x + 10, What two numbers multiply together to give 10 but when added together give 7 ?

• 3 and 4

• 2 and 5

• 1 and 10

• 6 sand 1

x² + 4x - 5, What two numbers multiply together to give -5 but when added together give 4 ?

• 2 and 2

• -5 and 1

• 1 and 5

• -1 and 5

x² + 4x - 21, What two numbers multiply together to give -21 but when added together give 4 ?

• -1 and 21

• -3 and 7

• -7 and -3

• -7 and 3

x² - 5x + 6, What two numbers multiply together to give 6 but when added together give -5 ?

• -1 and -4

• 1 and 6

• -2 and -3

• 2 and 3

x² - 9x + 14, What two numbers multiply together to give 14 but when added together give -9 ?

• -9 and 1

• 1 and -9

• -2 and -7

• 2 and 7

Factorise x² + 5x + 6

• (x+2)(x+3)

• (x+1)(x+6)

• (x+1)(x+5)

• (x-1)(x+6)

Factorise x² + 12x + 20

• (x+1)(x+20)

• (x+1)(x+11)

• (x+2)(x+10)

• (x+4)(x+5)

Factorise x² + x - 12

• (x+3)(x+4)

• (x-3)(x+4)

• (x-2)(x+6)

• (x-2)(x-6)