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

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

When you turn up the volume on a radio, which of the following change: velocity of sound, intensity, pitch, amplitude, frequency, wavelength, or loudness?

Rachel jogged along a trail that was 1/4 of a mile long. she jogged around the trail 8 times. How many mile did Rachel jogged?

which element from group 2A will form an ion that will have 36 electrons?

I need help with 2 math questions???

What percent of 45 is 72?

i need help with physical , if you push on a wall with a force of 200 N, with that force does the wall push back ?

Amanda's jewelry box is in the shape of a cube that has 6- inch edges what is the volume of Amanda's jewelry box

Please Explain This Function out for me :) f(s) =10 (s-65)+75

Express number in standard form 8.023×10^-7

New Groton, Connecticut, is the location of the A. National Oceanic and Atmospheric Administration. B. Coast Guard Academy. C. Air Force Academy. D. Naval Comma