niamhroseallison niamhroseallison
  • 27-11-2019
  • Mathematics
contestada

HELP!!! this is factorising quadratic expressions which a does not equal 1

question- 8x squared -2x -3

Respuesta :

rani01654 rani01654
  • 05-12-2019

Answer:

f(x) = (4x - 1)(2x + 1)

The zeros of the function are [tex]x = \frac{1}{4}[/tex] and [tex]x = - \frac{1}{2}[/tex].

Step-by-step explanation:

The given quadratic expression is 8x² - 2x - 3.

Now, the factorization of this quadratic expression gives:

f(x) = 8x² - 2x - 3

⇒ f(x) = 8x² - 6x + 4x - 3

⇒ f(x) = 2x(4x - 3) + 1(4x - 3)

⇒ f(x) = (4x - 1)(2x + 1)

Hence, the zeros of the function are [tex]x = \frac{1}{4}[/tex] and [tex]x = - \frac{1}{2}[/tex]. (Answer)

Answer Link

Otras preguntas

Do you think world war 3 can happen anytime ?
If f(5)=288.9 when r=0.05 for the function f(t)= pe^rt, then what is the approximate value of p?
The ratio of boys to girls in the homeroom is 2:3 if there were 8 boys how many girls are there
Some facts about The Everglades??
__________ generates information for use outside the organization. a. finance b. it c. managerial accounting d. financial accounting
what happens to a Springs Force if you stretch stretch it more
What does the rose bush represent in the scarlet lettter?
How does density change by changing the mass without changing the volume and by changing the volume of a substance without changing the mass?
The original price is $28.00 the tax is 7.25% what is the total
What does congress have authority to do?