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$∠$ $F$ From the sum $ot$ $x^{A}\left(2\right)-8$ with $3x-12$ subtract the sum $ofx-9$ with $3x-x^{A}\left(2\right)$ Multinlication takes place $\left(2\times A$ $\left(2\right)+5x+21\right)\left(x-$ $5\right)=$ #Please provide solution by using math formula.

Using the \emph{removal of first derivative} method, the differential equation \( \frac{d^{2}y} $\left(d\times n$ $\left(2\right)\right)+P|ffac\left(dy\right)\left(dx\right)+Qy=F$ $dx\right)+Qy=RN\right)$ is transformed as \). For, the differential equation \frac{d^{2}y} $\left(d^{n}\left(2\right)y\right)$ $dx$ $\left(2\right)+2x$ $\left(0C\left(dy\right)\left(dx\right)+\left(x$ $2+1\right)y=\times n3+3x\right)$ the value of $\left(11\right)$

#This question was automatically translated by Qanda $A1$ The proper process $t09$ obtain $m$ knowing that $ts$ local minimum $s$ $s$ $nclonf\left(x\right)=x^{n}\left(2\right)+\times \left(m\right)$ $\left(x\right)is$ Select a $=2e$ in the funclon

$f\left(x\right)= \begin{cases} x+3 \\ -2x+1 \end{cases} $ if $x>3$ $ifx\leq 3$

Domain of the function, $f\left(x\right)=\sqrt{1-\bar{\sqrt{\left(x^{2}} -4x+5\right)} } $ is $\left(1\right)$ $0$ $\left(2\right)$ $\left(3\right)$ $\left(2\right)$ $\left(4\right)$ $8-121\sqrt{} $ $1-\sqrt{1} ^{16}$

If $x^{3}+y^{3}-3xy=0$ then $y_{2}$ $a\right)$ $\dfrac {2xy} {\left(y^{2}-x\right)^{3}}$ $b\right)$ $\dfrac {-2xy} {y^{2}+x\right)^{3}}$ $c\right)$ $\dfrac {xy} {\left(y^{2}+x\right)^{3}}$ $d\right)$ $\dfrac {-2xy} {\left(y^{2}-x\right)^{3}}$