Question

Please help answer this!!!

Answer 1

Answer:

49)   $12\,b^4$

50)   $200\,x^6$

Step-by-step explanation:

Use the properties of exponent to reduce this expressions:

a)  $3\,b\,*\,4 \,b^3=(3\,*\,4)\,(b\,*\,b^3)=12\,b^{(1+3)}=12\,b^4$

b)  $5\,x^2\,*\,8\,x\,5\,*\,x^3=(5\,*\,8\,*\,5)\,(x^2\,*\,x\,*\,x^3)=200\,x^{(2+1+3)}= 200\,x^6$