13newbhal
13newbhal
10-01-2017
Mathematics
contestada
if 3x^2-2x+7=0 then (x-1/3)^2=
Respuesta :
phuong9822
phuong9822
10-01-2017
3x^2−2x+7=0
3x^2−2x+1/3+7−1/3=
0
3
(x^2−2x/3+1/9)
+7−1/3=0
3
(x−1/3)^
2
+(21−1)/3=0
3
(
x−1/3
)^
2
=−
20/3
(
x−
1/3
)^
2
=−
20/9
Answer Link
VER TODAS LAS RESPUESTAS ( 81+ )
Otras preguntas
What is the sign of the reaction entropy for the dissolution of Ba(OH)₂ · 8H₂O?a) Positiveb) Negativec) Zerod) Unpredictable
Which of the following sentences correctly describes the agricultural practice of leaving an area fallow?A. Planting multiple crops in successionB. Irrigating f
What percentage of freshwater is not surface water?a. 98.8%b.68.7%c.25%d.20%
Point H on the number line represents the height of a rock climber compared to the position of her campsite. Move a value and a word to the blanks to complete t
The life-sized terracotta sculptures that were placed along the ridgepole and on the cornice and peaks to decorate Etruscan temples were called _______. 1) Garg
What are the degree and zeros of the polynomial f(x) = (x-1)º(x+1)?a. degree 3; zeros 1, -1b. degree 3; zeros 1, 3c. degree 1; zeros 1, -1d. degree 1; zeros -1,
4. what decision does this shop need to make when the price of pizza is $1 per slice? what additional information is needed to make this decision? explain.
A car drives of of a cliff at a velocity of 8.24 m/s and it takes a time of 2.49 to hit the ground. How tall is the cliff? Remember: if it is asking for how tal
Around 1000 CE, the communities that inhabited Alaska, the Canadian Arctic, Greenland, and Newfoundland were displaced by which group of people?
The psychologist Urie Bronfenbrenner is best known for developing which key theory? A) Psychoanalytic theory B) Social cognitive theory C) Ecological systems th
