saldanhalemuelashnel saldanhalemuelashnel
  • 24-08-2020
  • Mathematics
contestada

If (x – ½) and (x-2) are the factors of px2+5x + r, find p and r . Also find p -r .

Respuesta :

oscar236
oscar236 oscar236
  • 24-08-2020

Answer:

p = -2, r = -2 and p-r =  0.

Step-by-step explanation:

(x - 1/2)(x - 2)

= x^2 - 2x - 1/2x + 1

= x^2 - 5/2x + 1

= 2x^2 - 5x + 2

= -2x^2 + 5x - 2

Comparing this with

px^2 + 5x + r

we see that  p = -2, r = -2 and p-r =  0.

Answer Link

Otras preguntas

Can someone follow all the instructions in the file and please help me pass this test on this essay and questions that needs to be answered
How can you avoid "emotional contagion"? A. Turn off notifications on your phone B. Spend time away from social media C. Stay offline before you go to bed D. A
1.3 + 6/50 equals what
How does the length of the vibrating object affect it’s frequency in a guitar
What is the measure of angle RST?
The sequence of amino acids was controlled by the information in the RNA molecules.
will it give me the right answers
Tenemos libros en las manos. a. Estamos durmiendo. c. Estamos cantando. b. Estamos leyendo. d. Estamos comprando cosas.
help plzzzzz ill give you 13 points
What is aggregate ? Of which items pictured is aggregate a major component ?