joseloredo joseloredo

03-02-2017
Mathematics

contestada

correctly complete the square for the equation below

x^2 + 18x = 0

Respuesta :

littlejohn18 littlejohn18

03-02-2017

x^2 + 18x = 0
(x^2 + 18x + 81) = 0
(x + 9)^2 = 81
x + 9 = +/-squareroot81
x = 0, and -18

Answer Link

Otras preguntas

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

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

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

How were life forms affected by the rise in atmospheric oxygen levels that began 2.2 billion years ago?

Can someone use the word delta in a sentence

Find Domain of the functionsquare root of (x-8)/x(x-9)

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

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

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

Can someone use the word delta in a sentence