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28 _ 99 =0 Enter the exact answer (i.e. keep your answer in exponential or logarithmic form, you do not need to calculate its numeric value). Enclose arguments of functions in parentheses and include a multiplication sign between terms. For example, c * In(h). Hints: * Remember by the rule of exponents, that e? 7 = (e* 2 so that you can try to factor this as (e + something) (e\" + something else) where the "something" and "something else" can be positive or negative numbers. 2 * Alternately, you could let y = e7 and this equation would be y* y 90 = 0 and you can solve first for y and then for x. Show your work and explain, in your own words, how you arrived at your