<img src="https://tex.z-dn.net/?f=y%20%7B%3F%7D%5E%7B2%7D%20%20-%2018y%20%2B%2081" id="TexFormula1" title="y {?}^{2}

3 years ago

" alt="y {?}^{2} - 18y + 81" align="absmiddle" class="latex-formula">

1 answer:

7 0

$\bf y^2-18y+81\implies \stackrel{FOIL}{(y-9)(y-9)}$

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