pinkster104
pinkster104 pinkster104
  • 15-04-2016
  • Mathematics
contestada

Help! How do I factor this?

Help How do I factor this class=

Respuesta :

jsblumen
jsblumen jsblumen
  • 15-04-2016
Given: [tex]5x^3-15x^2-140x[/tex]

Factor out a 5x: [tex]5x(x^2-3x-28)[/tex]

Find two numbers that multiply to -28 and add up to -3. In this case, -7 and 4: [tex]5x(x-7)(x+4)[/tex]
Answer Link
taehyung04
taehyung04 taehyung04
  • 17-04-2016
given <<5x^3-15x^2-140x>>
factor out everything in common
5x(x^2-3x-28)
factor polynomial within the parentheses
5x(x+4)(x-7)
Answer Link

Otras preguntas

What’s the answer???????#15
change the following sentence from direct to indirect speech: "Who is that man"? he asked.​
In how many ways can she grab 3 Snickers, 2 Starbursts, and 2 Reese's?
Suppose your salary in 2013 is $75,000. If the annual inflation is 6%, what salary do you need to make in 2022 in order for it to keep up with inflation? Round
Given that 1 millimeter = 1/1000 meters, 2 500 millimeters in meters is?​
whai is numarates what is ​
whats the numerator for the following rational expression u/v + 2/v =?/v
PLS HELPPP WHAT IS THE ANSWER????
What are all the solutions to the equation sin 2x = 2sin x in the interval [0, 2π)? {π} {0, π} {pi over 2} {pi over 2, 3 times pi over 2}
Which nineteenth-century writer developed the philosophy of civil disobedience? Martin Luther King, Jr. Henry David Thoreau A. Philip Randolph Mohandas Gandhi