Welcome :: Homework Help and Answers :: Mathskey.com

Q&A
Unanswered
Categories
Users
Ask a Question

Welcome to Mathskey.com Question & Answers Community. Ask any math/science homework question and receive answers from other members of the community.

Q&A Categories
BASIC MATH (93)
PRE-ALGEBRA (441)
ALGEBRA 1 (2,220)
GEOMETRY (864)
ALGEBRA 2 (2,751)
TRIGONOMETRY (1,187)
PRECALCULUS (1,903)
CALCULUS (2,802)
STATISTICS (129)
PHYSICS (659)
CHEMISTRY (137)
MECHANICAL ENGINEERING (64)
ELECTRICAL ENGINEERING (207)
Winplot Tutorials (2)

Most popular tags

solving-equations system-of-equations functions math slope-intercept-form physics homework-help trigonometric-identities integration limits substitution-method calculus

13,459 questions

17,854 answers

1,446 comments

807,728 users

X^3+2x^2-15x-36 = 0 factor theorem???

0 votes

Show me please!!?

factor-theorem

asked Jul 14, 2014 in ALGEBRA 1 by anonymous

Share this question

Google+ Facebook Twitter LinkedIn Reddit

Please log in or register to add a comment.

Please log in or register to answer this question.

1 Answer

0 votes

The equation is x³ + 2x² - 15x - 36 = 0.

By factor by grouping.

x³ + 2x² - 15x - 36 = 0

x³ - 4x²+ 6x² - 15x - 36 = 0

x²(x - 4) + [6x² - 24x + 9x - 36] = 0

x²(x - 4) + [6x(x - 4) + 9(x - 4)] = 0

x²(x - 4) + [(x - 4)(6x + 9)] = 0

Factor : (x - 4)(x² + 6x + 9) = 0

(x - 4)(x + 3)² = 0.

answered Jul 14, 2014 by lilly Expert

Please log in or register to add a comment.

Related questions

x^2-15x+54=155 solving by rational root theorem, descartes rule of signs, and the factor theorem.

asked Nov 21, 2013 in ALGEBRA 2 by rockstar Apprentice

rational-root-theorem
descartes-rule-of-signs
factor-theorem

Help In Factor Theorem Question?

asked Oct 25, 2014 in ALGEBRA 2 by anonymous

factor-theorem

Factor the expression X^2-15x+54?

asked Mar 8, 2013 in ALGEBRA 1 by andrew Scholar

factorization

Help with factoring polynomial?

asked Mar 10, 2015 in ALGEBRA 2 by anonymous

factor-theorem

FIND ALL REAL ZEROES OF THE FUNCTION F(X)=2X^3+15X^2+22X-15

asked Nov 23, 2013 in ALGEBRA 2 by linda Scholar

real-and-complex-zeros

Show that the equation x^3 - 15x + c = 0 has at most one root in the interval [-2, 2].

asked Jan 22, 2015 in CALCULUS by anonymous

application-of-derivatives
real-roots

How do you factor the following: x^2/12 - 2x/3 - 4

asked Dec 2, 2013 in ALGEBRA 1 by angel12 Scholar

factoring-polynomials

Factor the polynomials (x^2 – 2x +7)(2x^2 + 4x + 3)

asked Dec 2, 2013 in ALGEBRA 1 by chrisgirl Apprentice

factoring-polynomials

Factor the equation 3x^2+3x-36?

asked Jan 28, 2013 in ALGEBRA 1 by dkinz Apprentice

factorization

f(x)=ln(4+2x-x^2); [-1,3] using rolle's theorem

asked Dec 6, 2013 in ALGEBRA 2 by skylar Apprentice

rolles-theorem

use the Remainder theorem to ecaluate P(x)=x^4+x^3-x^2-2x

asked Nov 27, 2013 in ALGEBRA 2 by futai Scholar

remainder-theorem

Is (x + 3) a factor of 2x^4 + 5x^3 - 2x^2 + 5x + 3?

asked Jun 27, 2013 in ALGEBRA 2 by linda Scholar

factorization

The pythagorean theorem of this problem x^2+(2x+6)^2=(2x+4)^2

asked Nov 27, 2013 in ALGEBRA 1 by harvy0496 Apprentice

pythagorean-theorem

Y=x^3-15x^2+72x-100.

asked Jul 22, 2014 in PRECALCULUS by anonymous

intercepts

Without Graphing, describe each function as it would compare to y=x^2. 1) y=2x^2+100 2) y=1/20x^2-36

asked Mar 5, 2014 in TRIGONOMETRY by angel12 Scholar

parant
graph
transformation
of
function

rewrite 2y^2-x-20y+36=0 in vertex form. Determine the type of conic the equation represents?

asked Nov 30, 2013 in ALGEBRA 2 by skylar Apprentice

conic-section

How to find the zeros of x^4 + 2x^2 + 1 and factor?

asked May 14, 2014 in ALGEBRA 1 by anonymous

synthetic-division

Factor. A.) 54y + 6 B.) 42x + 36 y + 12

asked May 24, 2014 in ALGEBRA 1 by marleney Novice

factor

list the possible rational roots for x^6+5x^4+4x^2+3 as given by the rational roots theorem

asked Nov 21, 2013 in ALGEBRA 1 by angel12 Scholar

rational-roots-theorem

Decide whether Rolle's theorem can be applied to f(x) = x2 + 2x − 1 on the interval [–3, 1].

asked Dec 12, 2014 in PRECALCULUS by anonymous

rolles-theorem

Copyright © 2024 MATHSKEY. All Rights Reserved. Sitemap|Terms Of Use|Disclaimer|Contact Us|FAQ

...