Answer:
At 25 weeks Quert will have more pibs than Gespil.
the inequality for the graph is x<3
Perhaps the most concise way to factor is by "completing the square" which is how the quadratic formula is derived...
x^2+6x+8=0 move constant to other side, subtract 8 from both sides
x^2+6x=-8, halve the linear coefficient, square it, then add that to both sides, in this case (6/2)^2=3^2=9
x^2+6x+9=1 now the left side is a perfect square of the form
(x+3)^2=1 take the square root of both sides
x+3=±√1 subtract 3 from both sides
x=-3±√1
x=-3±1
x=-4 and -2
Since the zeros occur when x=-4 and -2 the factors of the equation are:
(x+2)(x+4)
42.5 units sq
I’m not sure because I did this partly in my head but this should be right.
(x-10)(x-4) because 4-10=6 then multiply that by 0 from 4-4