PRACTICE CHAPTER 1 FORM 4

Solve the quadratic equation

 $-2x^2+11x=12$  

•  $x=-4\ ;\ x=\frac{3}{2}$  

•  $x=-\frac{3}{2}\ ;\ x=4$  

•  $x=\frac{3}{2}\ ;\ x=4$  

•  $x=-4\ ;\ x=-\frac{3}{2}$  

Solve the quadratic equation

 $8x^2+10x-3=0$  

•  $x=-\frac{1}{4}\ ;\ x=\frac{3}{2}$  

•  $x=-\frac{3}{2}\ ;\ x=\frac{1}{4}$  

•  $x=\frac{3}{2}\ ;\ x=-\frac{1}{4}$  

•  $x=-\frac{1}{4}\ ;\ x=-\frac{3}{2}$  

Solve the quadratic equation

 $\left(x+2\right)^2=2x+7$  

•  $x=1\ ;\ x=3$  

•  $x=-1\ ;\ x=3$  

•  $x=-1\ ;\ x=-3$  

•  $x=1\ ;\ x=-3$  

Solve the quadratic equation

 $\left(x+3\right)\left(2x-4\right)=x^2-4$  

•  $x=-2\ ;\ x=4$  

•  $x=-2\ ;\ x=-4$  

•  $x=4\ ;\ x=2$  

•  $x=-4\ ;\ x=2$  

Solve the quadratic equation

 $\frac{5x+21}{x}=2\left(x-3\right)$  

•  $x=-\frac{3}{2}\ ;\ x=7$  

•  $x=\frac{3}{2}\ ;\ x=-7$  

•  $x=-\frac{3}{2}\ ;\ x=-7$  

•  $x=\frac{3}{2}\ ;\ x=7$  

Solve the quadratic equation

 $\frac{x-20}{3-4x}=\frac{3}{x}$  

•  $x=-1\ ;\ x=9$  

•  $x=-9\ ;\ x=1$  

•  $x=-1\ ;\ x=-9$  

•  $x=1\ ;\ x=9$  

Diagram shows a trapezium. Given the area of trapezium is

 $\left(4x+4\right)\ cm^2.$  Find the value of x

• 2

• 4

• 6

• 8

Diagram shows a cone. Given that the volume of cone is

 $1188\ cm^3.$  Find the value of x.

Diagram shows a photo frame. Given a piece of photo with a size of

 $20\ cm\ \times15\ cm$  is put into a photo frame of with an area of  $494\ cm^2$  . Find the value of x.

Diagram shows the net of a box. Find the value of x if the surface area of the box is $204\ cm^2.$