Solve the following equatio
23 - 7a + - (3a - 3)

26-10a

Step-by-step explanation:

Question : 23 - 7a + - (3a - 3)

1. Remove the parenthesis - When there is a "-" in front of the parenthesis, change the sign of each term in parenthesis

23-7a-3a+3

2.  Add the numbers that you have - 23 and 3

23 - 7a - 3a + 3          

26-7a-3a

3. Collect the like terms -      7a and 3a

26 - 7a - 3a

26 - 10a

Your simplified answer is 26 - 10a

2/5

step-by-step explanation:

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.