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

What is the percentage increase from 200 to 280
A rectangular bedroom floor has an area of 100 square feet and a length of 10 feet. What is the perimeter of the floor?
differentiate benzene and cyclohexane
4x^2-28x+49=5 solve the quadratic by completing the square
what british policy did american colonists protest at the boston tea party
|-6|+|3| I really don't get it do I simply find the sum our is it something different plz explain
How many times dose 150 go into 1000
Donald Johanson, Tom Gray, and others discovered a hominid that lived in East Africa__________ million years ago and nicknamed her Lucy, whose scientific name t
need help with this question#20
|-6|+|3| I really don't get it do I simply find the sum our is it something different plz explain