furrypickle furrypickle

16-11-2018
Mathematics

contestada

use substitution method & show your work.
y = x^2 + 3x - 1
4x + 1 = y

Respuesta :

Thisguy248 Thisguy248

16-11-2018

4x + 1 = x^2 + 3x - 1
4x = x^2 + 3x - 2
0 = x^2 -x - 2
0 = x^2 -x + 1 - 3
0 = (x - 1)^2 - 3
3 = (x - 1)^2
sqrt 3=(x-1) and (-(x-1))
x = 1+sqrt 3 and 1-sqrt 3
sqrt means square root

Answer Link

ACCESS MORE ACCESS MORE ACCESS MORE ACCESS MORE

Otras preguntas

WILL MARK BRAINLIEST!!! After the Island-Hopping Campaign, the United States drew even closer to Japan with victories at what two islands? Question 4 options:

how can social economic status affect the performance of a trainee teacher

What is the difference of 6 - 3 1/2

9. a cylinder and its dimensions are shown in the diagram, which equation can be used to find V, the volume of the cylinder in cubic inches?

A 75.0-ml volume of 0.200 m nh3 (kb=1.8×10−5) is titrated with 0.500 m hno3. calculate the ph after the addition of 19.0 ml of hno3. express your answer numeric

What are smart mobile devices Intelligent desktop computers Off-site mechanisms Portable computing tools Remote-controlled applications

What was her two mistakes in this problem

Which statement accurately describes the relationship between the brain and addiction? A. All drugs act on dopamine synapses in the same way. B. The brai

Japan immediately surrendered after the dropping of the atomic bombs on Hiroshima and Nagasaki. Question 5 options: True False

A large farm diverts river water to its land for irrigation. Doing this gives the farm more access to water, helping its crops to grow. How will this most likel