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Solve the equation and express the solution in exact form.
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Q78: <span class="ql-formula" data-value="f(x)=-\frac{1}{3}(x-5)^{2}"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo stretchy="false">(</mo><mi>x</mi><mo
Q151: How long will it take a
Q191: <span class="ql-formula" data-value="P ( x ) =
Q202: <span class="ql-formula" data-value="f(x)=3-x"><span class="katex"><span class="katex-mathml"><math xmlns="http://www.w3.org/1998/Math/MathML"><semantics><mrow><mi>f</mi><mo stretchy="false">(</mo><mi>x</mi><mo
Q276: <span class="ql-formula" data-value="2 x ^ { 8
Q279: <span class="ql-formula" data-value="12.6 \mathrm {~m}"><span class="katex"><span class="katex-mathml"><math
Q287: <span class="ql-formula" data-value="\mathrm { k } =
Q400: A <span class="ql-formula" data-value="19 \mathrm
Q414: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB4654/.jpg" alt=" A)
Q458: <span class="ql-formula" data-value="f ( x ) =