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

How can hypertension be prevented? a. balanced diet b. regular exercise c. 6y weight d. all of the above

what force makes a ball rolling along the ground slow down

Mr. Pham has $410,000 in a retirement account that earns 3.85% simple interest each year. Find the amount earned each year by this investment.

James bought 5 boxes of cookies and 2 cakes at the store for his party. The cakes cost $4 each and his total bill was $28.50, how much was each box of cookies?

Which activity related to selecting a topic for a literary analysis essay involves examining each element of the text carefully? A )drafting B) rewriting C) clo

Portion is found by the rate times the base

What is child proof.

Which of these sentences gives the best description of the American identity? America is a melting pot of people of diverse ethnicities who share the common Ame

A number is between -1 and -5. What is the least possible integer value of its opposite?

Which of the following materials is useful for making molds because it has a low melting point? A. wood B. metal C. clay D. wax