02-08-2016
Mathematics

contestada

which of the following is a polynomial with roots 4, -5 and 7?

Respuesta :

nobillionaireNobley nobillionaireNobley

04-08-2016

Required polynomial is (x - 4)(x + 5)(x - 7) = (x - 4)(x^2 - 2x - 35) = x(x^2 - 2x - 35) - 4(x^2 - 2x - 35) = (x^3 - 2x^2 - 35x) - (4x^2 - 8x - 140) = x^3 - 2x^2 - 35x - 4x^2 + 8x + 140 = x^3 - 6x^2 - 27x + 140

Answer Link

Otras preguntas

What angle is formed by the combined angles?

ConConsider the following system of equations:2x + 3y = 45x+y = 10What is the x-value of the solution for this system?

Find the sum of the series 14+11+8+5........-82

A toaster has four slots for bread. Once the toaster is warmed up, it takes 35 seconds to make 4 slices of toast, 70 seconds to make 8 slices, and 105 seconds t

Describe at least two of Nast's achievements in his struggle to expose Tammany Hall presented in the document

Who gets better access to school in Africa? A.) Boys b.) Girls c.) Children under the age of 10 d.) There are no schools in Africa

Which shows two expressions that are equivalent to (-8)(-12)(2)

What element of the plot is this passage an example of

Write ln x^2+3 Iny a single logarithm (Picture provided)

Majority rule, first-come/first-served, and sharing equally are examples of _____ . productive resources non-market distribution methods opportunity costs