ProPeace
ProPeace
20-02-2015
Mathematics
Answered
[tex]9X^2-12X+4=0[/tex] X=?
Answer :
konrad509
konrad509
20-02-2015
[tex]9x^2-12x+4=0\\ (3x-2)^2=0\\ 3x-2=0\\ 3x=2\\ x=\dfrac{2}{3} [/tex]
Answer Link
ValyRemus
ValyRemus
20-02-2015
[tex]9x^2-12x+4=0[/tex]
[tex](3x)^2-2\cdot 2\cdot3x+2^2=0[/tex]
[tex](3x-2)^2=0, but...(3x-2)^2 \geq 0[/tex] , ∨ x∈R
[tex]So, (3x-2)^2=0[/tex]
[tex]3x-2=0[/tex] ⇒ [tex]3x=2[/tex] ⇒ [tex]\boxed { x= \frac{2}{3} }[/tex]
Answer Link
VIEW ALL ANSWERS ( 99+ )
Other Questions
what is 895 rounded to the nearest whole number
which is greater 51 or 501
Farmers in the Indus River Valley built to irrigate crops and supply nutrients to the soil during floods a canals c citadels b aquifers d storehouses
how do you solve a quadratic equation
How do i solve 0074 x n equals 74
Which was one result of the car culture that developed in the postwar era Points 3 Congress passed legislation to provide for the construction of the interstate
the number that is less than 20 less than 360 is what percent of 360
Alesha bought a monster using only silver coins It cost her 45p There are nine different ways to pay 45p exactly using only silver coins Find as many as you can
how did Czar Alexander IIs emancipation edict affect the lives of Russian serfs
how could you leave home on Monday to go sailing sail for an hour on Sunday and return home on Monday
