The value of x, bring the variable to the left side and bring all the remaining values to the right side. Simplify the values to find the result.
Y=x^2+10x+11
y=x^2+x-7
therefore,
x^2+10x+11=x^2+x-7
x^+10x+11-x^2-x+7=0
9x+18=0
x=-2
y=(-2)^2+10(-2)+11= -5
Let's call the team members: y(ou), k, ma, mi, d, s , that's 6 members.
We know that the number of candies is 18+23+20+28 (which is 89) plus whatever Simon and Doug found.
If the average per person is 22, then all people in total found 6*22=132.
We don't know how much doug and Simon found, but together they found 132-89=32+11=43,
Once we know how much Doug found, we can subtract it from 43 and we'll know.
From all the people so far, Michelle found the most, but it could be that either Doug or Simon found more: the problem is we don't have enough information now to find out.
So the change in between terms is 5 so you would put 5x, then for the first term, which is 2, 5*1(x)(because it's first term) then the difference between 5-2(because it's the 2nd term) So you would plug 100 in for x so 5(100)-3=497. Hope this helped!