demeria92 demeria92
  • 02-12-2021
  • Mathematics
contestada


What are the solutions of the equation 9x4 - 2x2 - 7 = 0? Use u substitution to solve.

What are the solutions of the equation 9x4 2x2 7 0 Use u substitution to solve class=

Respuesta :

Gotenks99
Gotenks99 Gotenks99
  • 02-12-2021

9t +7 = 0

t-1 =0

solve for both giving

t = -7/9

t = 1

then we have to plug that back in to u which is x^2

so x^2 = (-7/9)^2 = -1

x^2 = 1

if any doubt leave a comment

Ver imagen Gotenks99
Ver imagen Gotenks99
Ver imagen Gotenks99
Ver imagen Gotenks99
Ver imagen Gotenks99
Answer Link

Otras preguntas

A food tray has a perimeter of 86 cm. The length of the tray is 5 cm less than triple the width. What is the length, in cm, of the tray?
3x-5=45 what is the answer for x.
what is the role of nucleic acid​
what causes the earth to have layers?
can yall help!?!?!?!?
What makes a sentence?
Read the following sentences. Arrange the sentences from 1-8 in a logical order. a. Whale sharks, the largest of all fish, may grow eighteen meters long. b. Sh
hurry I will mark brainlist if you help with me with these 2 simple questions
Sales revenue for Hy Marx Tutoring was $220,000. The following data are from the accounting records of Marx: Accounts receivable, January 1 $66,000 Accounts rec
what is the area of a triangle with a base of 1.3cm and height of 0.5 cm?