(a) Cardamo and Ferrari discovered that to depress a cubic, it is sufficient to let x = y - za the equation ax³ + bx² + cx + d = 0. * Depress the cubic 2x³ - 30x² + 162x - - 350 = 0. (b) To solve a depressed cubic of the form x³ + Ax = B Scipione del Ferro noticed that it is sufficient to let 3st = A (& express s in terms of t) and s³t³ = B. A solution will be given by x = s-t. * Consider the depressed cubic x³ - 2x = 4.
(a) Cardamo and Ferrari discovered that to depress a cubic, it is sufficient to let x = y - za the equation ax³ + bx² + cx + d = 0. * Depress the cubic 2x³ - 30x² + 162x - - 350 = 0. (b) To solve a depressed cubic of the form x³ + Ax = B Scipione del Ferro noticed that it is sufficient to let 3st = A (& express s in terms of t) and s³t³ = B. A solution will be given by x = s-t. * Consider the depressed cubic x³ - 2x = 4.
Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter59: Areas Of Rectangles, Parallelograms, And Trapezoids
Section: Chapter Questions
Problem 79A
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Question
Transcribed Image Text:3.
b
in
(a) Cardamo and Ferrari discovered that to depress a cubic, it is sufficient to let x = y - zi
the equation
ax³ + bx² + cx + d = 0.
* Depress the cubic 2x³ 30x² + 162x 350 = 0.
(b) To solve a depressed cubic of the form
x³ + Ax
=
B
Scipione del Ferro noticed that it is sufficient to let 3st = A (& express s in terms of t) and
s³t³ = B. A solution will be given by x = st.
* Consider the depressed cubic
x³ - 2x = 4.
Write the s,t equations and solve for s and t. Find the associated solution.
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