tjb19861124
tjb19861124 tjb19861124
  • 25-09-2017
  • Mathematics
contestada

Factoring a quadratic with leading coefficient greater than 1


2y^2+17y-9

Respuesta :

wizard123
wizard123 wizard123
  • 25-09-2017
Multiply first and last coefficients:
2*(-9) = -18

Find 2 factors which multiply to -18 and add up to 17:
18 and -1

Rewrite quadratic with 17y split up as' 18y - y', Then factor by grouping:

[tex]2y^2 - y + 18y -9 \\ \\ y(2y-1) + 9(2y-1) \\ \\ (2y-1)(y+9)[/tex]
Answer Link

Otras preguntas

when negative five is subtracted from a number the result is 10 find the number 15 5 -5 -15
when negative five is subtracted from a number the result is 10 find the number 15 5 -5 -15
Which of the following words is of Anglo-Saxon origin? the slowly look all answers
which activity is an example of muscular strength riding a bike for 20 miles lifting bags of groceries swimming for 40 minutes running for 30 minutes
The original judiciary branch included a Supreme Court made up of _____ justices.
whom should I vote for? Is that true or false
complainer in the workplace
What do you do to add a line or circle to your presentation?
Your cousin wants to quit using prescription drugs. She is under the care of a doctor, so which of the following can best improve her chances at success? A. Ma
Which great society programs supported education?