aakashsajith1
aakashsajith1 aakashsajith1
  • 06-08-2020
  • Mathematics
contestada

1. If one zero of the quadratic polynomial kx² + 3x + k is 2 then the value of k is *

Respuesta :

Rushal
Rushal Rushal
  • 06-08-2020

Answer:

Step-by-step explanation:

Given one zero of the quadratic polynomial kx² + 3x + k is 2,

Substitute x = 2 in the polyomial , we get

k(2)²+3×2+k = 0

=> 4k + 6 + k = 0

5k+6 = 0

5k= -6

k= -6/5

Therefore,

Value of k = -6/5

Ver imagen Rushal
Answer Link

Otras preguntas

10 interesting questions on plant cells
What is Cytomembrane System? How does it work? What are it's parts?
What equipment and “clothing” would be needed to explore the planet Uranus?
What is Cytomembrane System? How does it work? What are it's parts?
the perimeter of the triangle shown to the right is 154 meters. find the lenght of each side. (4x)m  (7x+2)m  (7x+8)m
8x=10y2x-y=5solve x and y
How many triangles can fit on a square?
the product of three and a squared number is twice the sum of the number and four
By how much is the product of 27 and 13 greater than their sum?
a 2.5 kg table can hold kg of weight. what is its structural efficiency?