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{{ printedBook.courseTrack.name }} {{ printedBook.name }} The general form of a quadratic function is $y=ax_{2}+bx+c. $ Investigate if the functions are in this form.

The function has two $x_{2}$ terms. Thus, they can be added. $y=x_{2}+3x_{2}⇔y=4x_{2}. $ The function does not have an $x$-term or constant but it simply means that these terms are zero, so $y=4x_{2}+0x+0. $ Therefore, $A$ is a quadratic function.

The function contains an $x_{2}$-term, but also the term $x_{0.5}.$ Hence, it does not fit the form $y=ax_{2}+bx+c,$ and is **not** a quadratic function.

We see directly that the function is not a quadratic function because it contains a variable that is raised to $3.$

$y=27x_{2}+2x−10 $

WriteDiffFracWrite as a difference of fractions

$y=27x_{2} +22x −210 $

CalcQuotCalculate quotient

$y=27x_{2} +x−5$

MovePartNumRight$ca⋅b =ca ⋅b$

$y=27 x_{2}+x−5$