Complete the square
first isolate x terms
y=(x^2-4x)-9
complete square inside (take 1/2 of square of b )
-4/2=-2, (-2)^2=4
add 4-4 inside
y=(x^2-4x+4-4)-9
complete the square
y=((x-2)^2-4)-9
y=(x-2)^2-4-9
y=(x-2)^2-13
What is the SECRET to football BETTING ??
14 to the 6th power is 7,529,536. There are zero factors.
The value or outcome would be -6.25 .
Remove these 7 guys from your number
so people who took buses are 318
now divide 318/6 to know how many phone did each bus have
