Please please help
Simplify (4x − 6) − (3x + 6).

x - 12

Step-by-step explanation:

To solve the equation, you need to combine like terms.

The first pair of like terms are 4x and 3x, so 4x - 3x = x

The second pair of like terms are -6 and 6 so -6 - 6 = -12

Therefore, the answer will be x - 12

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.