Simplify (a+b)(a+b)(a+b)(a+b)=

(a)  

simplify (m-1)(m-1)=

(a)  

 $3m^2\times5mn^{\text{4}}=$  

(a)  

 $\frac{3}{4}e^6f^3\times16e^2f^4=$  

(a)  

Calculate the total lenght, in cm, of the pencil and knife if the pencil is (3x+1)cm and the knife is (2x-3)cm.

(a)  

 $\ 45a^9b^2\div15a^2b=$  

(a)  

 $\ 26c^{11}d^8\div13c^5d^6=$ 

Find the quotient for that equation.. 

(a)