Mathematics- 10

What is the value of $a^0$  

• 0

• 1

• a

• aa

What is the formula ( $\left(a+b\right)^2$  

•  $a^{2^{ }}+2ab+b^2$  

•  $a^2-2ab+b^2$  
  
   $a^2-2ab+b^2$  

•  $a^2-ab+b^2$  

Which is the surd ?

• $\sqrt{2}$

• $\sqrt{4}$

• $4^2$

• $\frac{\text{2}}{\text{5}}$

What is the value of  $2^4\div4^2$  ?

• 16

• 8

• 4

• 1

Which is  correct ?

• $a^{m+n}=a^m\times a^n$

• $a^{m+n}=a^m+a^n$

• $a^{m+n}\ =a^{mn}$

• $a^{m+n}=\ a^{m\ }\div a^n$

What is the rationalization factor of $\sqrt{3\ }+2\sqrt{2}$  ?

•  $\sqrt{3}-2\sqrt{2}$   

•  $\sqrt{2}+2\sqrt{3}$  

•  $2^2+3^2$  

•  $2\sqrt{2}+\sqrt{3}$  

What is the value of

 $\sqrt{2x+5}\ \ =5$  

• 5

• 10

• 25

• 20

What is the value of

 $\sqrt{2}\times\sqrt{8}$ 

• 2

• 16

• 4

• all of above

What are the factors of 

 $x^2-4x+4$  

• (x+2)(x+2)

•  $\left(x+2\right)^{2\ }$  

• (x-2) (x - 2)

• (x+2) (x-2)

what is the value of

 $$\left(\frac{8}{27}\right)^{\frac{-1}{3}} 

 

•  $\frac{2}{3}$  

•  $\frac{3}{2}$  

•  $\frac{4}{9}$  

•  $\frac{9}{4}$