Show that a²x²-ax+1=0 can never have real roots
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Answer:
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Step-by-step explanation: %
<u><em>Calculate</em></u>
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<u><em>Multiply both the numerator and denominator with the same integer</em></u>
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<u><em>Cross out the common factor</em></u>
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<em>I hope this helps you</em>
<em>:)</em>
2eˣ - 7 = 21
2eˣ = 28
eˣ = 14 How do we isolate for x now? Well we know that aˣ=b can be converted to .
x = A shorthand for "log base e" is the natural log (ln).
x = ln(14)
x = 2.64 approx.
Exact answer: ln(14)
Approximation: 2.64