# 6.1 Quadratic Equations and inequality

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Slide 1: Slide
WiskundeMiddelbare schoolhavoLeerjaar 3

This lesson contains 13 slides, with interactive quizzes and text slide.

## Items in this lesson

#### Slide 1 -Slide

it is a quadratic equation.
ax2+bx+c
A
TRUE
B
C
D
FALSE

#### Slide 2 -Quiz

it is a quadratic equation.
bx+ax2+c
A
B
FALSE
C
TRUE

#### Slide 3 -Quiz

it is a quadratic equation.
ax3+bx2+c
A
TRUE
B
C
D
FALSE

#### Slide 4 -Quiz

it is a quadratic equation.
ax+bx+c
A
B
TRUE
C
FALSE

#### Slide 5 -Quiz

Bring a common factor outside the brackets.
5x2+6x
A
5(x+6)
B
x(5x+6)
C
5x(x+6)
D
x2(5+6)

is equal to...

x2+7x+12
A
(x+7)(x+12)
B
(x+4)(x+3)
C
(x+4)(x-3)
D
(x-4)(x+3)

factorise

x2+19x+18
A
(x-18)(x+1)
B
(x+2)(x+9)
C
(x+18)(x-1)
D
(x+1)(x+18)

#### Slide 8 -Quiz

= 12 is equal to...
x24x
A
(x+6)(x+2)
B
(x+6)(x-2)
C
(x-6)(x+2)
D
(x-6)(x-2)

= 12 solve
x24x
A
6 V 2
B
6 V -2
C
-6 V 2
D
-6 V 2

#### Slide 10 -Quiz

Write the general formula of a quadratic equation. y=.......

find a, b and c
4x24x+5
A
-4, 4,5
B
4, 4,-5
C
4, 4,5
D
4, -4,5

find c, a and b
3x2x2+7
A
3, -2,7
B
3, 7,-2
C
7, -2,3
D
7, 2,-3