
is given
here ,
or,

or,

or,7x²+3x-4=-4
or,7x²+3x=0
or,x(7x+3)=0
Either,x=0| Or,7x+3=0
|or,7x=-3
|or,x=

So , the solution set is S={0,-

}
Answer: Ok, the chanche of both children were born on a monday is 
Step-by-step explanation: Well, we alredy know that one of her children was born on a monday, when they ask the probability of both children were born on a monday, we only need to see the case of the second kid.
So, the week has 7 days, ence the probability for each day (in this case a monday) is 1/7.
It is 12 , 12 is the answer 6+6=12
2nd from the top because the x column continues to increase by the same thing and the y column continues to increase by the same thing