Respuesta :

mumsy

Answer:

Step-by-step explanation:

i will attempt to answer the first part, as the second I do not understand

75-3x^2=0

divide by 3

25-x^2=0

x^2=25              x=sqrt25

x is +5 and -5  you have 2 solutions

Answer: =−27x3+75

5m+2/ 8m^2

Sorry if wrong (In a rush)