biancavil32 biancavil32

16-01-2020
Mathematics

contestada

What substitution should be used to rewrite 4x^4 -21x^2+20=0 as a quadratic equation

Respuesta :

MathPhys MathPhys

16-01-2020

Answer:

u = x²

Step-by-step explanation:

4x⁴ − 21x² + 20 = 0

4(x²)² − 21x² + 20 = 0

If we substitute u = x²:

4u² − 21u + 20 = 0

Answer Link

Otras preguntas

HELP PLEASEE!! You will build a simulation of a population using the same elements as the simulation pictured here and show how the traits in this population ch

please help this is on a quiz due in a few mins lol

Blank minus 1/2 equals 3/4

Help please :) X-ray waves are transmitted by ....... ?

how can i answer qustions on barinly

Which word is the best synonym for stress? Depression Discomfort Irritability Anxiety

Which of the following statements are true of cartilaginous joints? A) The spine contains many cartilaginous joints. B) They are the most flexible type of joint

write a letter in a role of a soldier from world war 1 about your wartime experiences PLS i needed fast i give 30 points

Can someone please help me

What is the equation of the line in slope intercept form?