Quadratic Formula/Factorising
Solve the following quadratics by factorising 
or using the quadratic formula
PUT THE SMALLEST NUMBER IN THE FIRST BOX
x2+8x+12=0
x =
or
X2+X-20=0
SMALLEST NUMBER FIRST
X = 
or
x2+3x-10 = 0
x = 
or
Rearrange and then solve the following quadratics
x2-16= -6x
x = 
or
x = 
x2-3(x+6)=0
or
x + 1 =
x = 
12
or
The area of the shape is 30 cm2.  
Find the value of x. 
x+1
x
x =
George's garden has an area of 28 m2. The width is x meters.  
The difference between the length and the width is
3 meters. 
Find the value of x.
x = 
x
The area of the triangle is 10 cm2.  
Find the height of the triangle if the
base is 1 cm shorter than the height.
x = 
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