karlaantuche08 karlaantuche08

03-10-2019
Mathematics

contestada

Use the quadratic formula to find both solutions to the quadratic equation
given below.
2x2 + x -1 = 0

Respuesta :

devishri1977 devishri1977

03-10-2019

Answer:

Step-by-step explanation:

2x² + x -1 = 0

x² + x² + x -1 = 0

(x² - 1) + x² + x =0

(x + 1) (x - 1) + x(x + 1) =0

(x+1) (x - 1 + x) = 0

(x + 1)(2x - 1) = 0

Answer Link

myvixwkaua myvixwkaua

06-02-2021

Answer: x=1/2 & x=-1

Step-by-step explanation:

Answer Link

Otras preguntas

Can someone use the word delta in a sentence

Which equation has the same y-intercept as y=4x-3?a. y-3=x b. y=8x+3 c. 3-y=4x d. y=-3+8xWhich of the following is the equation of the line

Which equation has the same y-intercept as y=4x-3?a. y-3=x b. y=8x+3 c. 3-y=4x d. y=-3+8xWhich of the following is the equation of the line

Data are drawn from a symmetric and bell shaped distribution with a mean of 120 and a standard deviation of 5. There are 900 observations in the data set. What

Historians of china have traditionally dated the beginning of Chinese civilization to the founding of the what??

Prove that (x^5)-(x^2)+2x +3=0 has at least one real root. Prove that x=cosx has at least one solution.

Historians of china have traditionally dated the beginning of Chinese civilization to the founding of the what??

how is mass transit in cities a possible solution tk urban air pollution?

Historians of china have traditionally dated the beginning of Chinese civilization to the founding of the what??

what is the answer for (20,8),(9,16) ?