Suitesistahfksjfhaiu Suitesistahfksjfhaiu
  • 03-06-2017
  • Mathematics
contestada

Factor. x2+3x−18

Enter your answer in the parentheses

x2+3x−18= ( )( )

Respuesta :

choco4
choco4 choco4
  • 03-06-2017
X^2 + 3x - 18

2 numbers that multiplied give you -18
Those same 2 numbers have to add up to 3

6 x -3 = -18
6 + -3 = 3

(X + 6) (x - 3)
Answer Link
irspow
irspow irspow
  • 03-06-2017
Since this is simple integer factors.  For a quadratic of the form ax^2+bx+c, there will be two values, j and k, which satisfy to conditions:

jk=ac=-18 and j+k=b=3, so j and k must be 6 and -3

So factored this is:  (x+6)(x-3)
Answer Link

Otras preguntas

What should you avoid in order to make a more credible argument? A. Dramatic monologues B. Logical fallacies C. Logos, pathos, and ethos D. External conflict
Members of the Supreme Court are appointed for .
Andrew Johnson was impeached by Congress when he A. was caught accepting bribes. B. decided to allow all Confederate states back into the union.
Under a parliamentary government, who has the most power in government? a. President c. House of Commons b. Queen d. Prime Minister
Consequences of early sexual activity are often negative
Samantha correctly answer 38 out of 55 questions on it. She must score 70% or greater to pass the test. did she pass? justify your answer
The earth exerts a gravitational force of 500 N on an object. What is the mass of the object in kg
what does emulate mean
What are five characteristics for the typical North American tourist?
What assumption is made with supply-side economics?