A shop owner offerad a 20% discount off the regular price of a mirror. The amount of the discount is 3$ what is the regular pric
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F(x) = (x + 1)(x - 2)
f(x) = x(x - 2) + 1(x - 2)
f(x) = x(x) - x(2) + 1(x) - 1(2)
f(x) = x² - 2x + x - 2
f(x) = x² - x - 2
f(x) = x(x - 2) + 1(x - 2)
f(x) = x(x) - x(2) + 1(x) - 1(2)
f(x) = x² - 2x + x - 2
f(x) = x² - x - 2
Let . Then differentiating, we get
We approximate at
with the tangent line,
The -intercept for this approximation will be our next approximation for the root,
Repeat this process. Approximate at
.
Then
Once more. Approximate at
.
Then
Compare this to the actual root of , which is approximately <u>1.76929</u>2354, matching up to the first 5 digits after the decimal place.