bae5ever
bae5ever
14-06-2017
Mathematics
contestada
Which is a factor of x^2+7x-18
Respuesta :
sierrahedgessh
sierrahedgessh
14-06-2017
factor(x^2+7x-18)
This question is simple
X^2+ 7x-18=0
So Factor is by crossing: (X+9)(X-2)
= X^2 -2X +9X-18
= X=2 or X=-9
Answer Link
firestarangel26
firestarangel26
14-06-2017
x^2+7x-18
Ask yourself:
What adds up to 7 but multiplies to -18?
In this case:
9 and -2 would be the answer.
9 * -2=-18
9-2=7
Factor form:
(x-2)(x+9)
Final answer:
(x-2)(x+9)
Answer Link
VER TODAS LAS RESPUESTAS ( 91+ )
Otras preguntas
A flag is in the shape of a 30°-60°-90° triangle. The shorter leg has a length of 10 inches. What is the length of the hypotenuse? Question 9 options: 20 inche
Why does President Obama oppose many free trade agreements? A. benefits provided to big businesses, but workers are not protected / B. U.S. cannot maintain a c
What is the "unfinished work" Lincoln mentions in paragraph 3? (5 points) Select one: a. reuniting the Union b. completing the cemetery c. dedicating the cemete
The years from 1810 to 1825 were difficult for__________because of the many territorial losses it suffered. A.Peru. B.Spain. C.Mexico. D.Venezuela"
How do heavy sediment deposits affect waterways?
All of the following are disadvantages of a manuscript speech, except: a. it is a difficult skill to master b. there is little chance of forgetting vital inform
What does the process of close reading help a reader do?
Select all of the following that are essential to an effective introduction to a literary analysis. A memorable clincher The author and title of the work A
Parkinson’s disease is a brain disorder that may be caused by mutations in several genes that code for the production of alpha-synuclein. Individuals who have P
How are DNA and mRNA alike?
