At a party, the amount of people who ate chicken wings was 9 less than 3 of the total
1 answer:
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Answer:
87/3
Step-by-step explanation:
Here we are given the expression:
Now we have to find the value of this expression when x equals 9.
So plugging the value of x as -9 in the given expression:
=87/3
So on evaluating we get the value of expression as 87/3.
This is a quadratic equation, i.e. an equation involving a polynomial of degree 2. To solve them, you must rearrange them first, so that all terms are on the same side, so we get
i.e. now we're looking for the roots of the polynomial. To find them, we can use the following formula:
where is a compact way to indicate both solutions
and
, while
are the coefficients of the quadratic equation, i.e. we consider the polynomial
.
So, in your case, we have
Plug those values into the formula to get
So, the two solutions are