3 (X Squared - 2) -66=0

3 (x squared - 2) -66=0

 

Answer:

x=2√6 or x=−2√6

Step-by-step explanation:

3(x²-2)-66=0

Distribute

3x²-6-66=0

Standard Form : 3x²−72=0

3x²=72

----  -----

3      3

x²=24

x=±√24

x=2√6 or x=−2√6

#JuneChallenge


Comments

Post a Comment

Popular posts from this blog

10 Payo Ng Magulang?

10 payo ng magulang?   Answer: Explanation:Huwag aalis ng bahay. Huwag kumain ng tsitsirya. Mag aral ng mabuti. Mag papakabait sa iyong guro o kaklase. Kumain ng masustansiyang pagkain. Huwag  maglaro sa putikan. Ubusin ang pagkain sa mesa. Huwag mag iinternet. Huwag sumama sa hindi mo ka kilala. Huwag sumabat sa usapan ng matatanda.
Read more

How Does The Heart Function As A Pump

How does the heart function as a pump   Answer: How the heart works, and how it can cause sudden death   In order to understand why sudden death can happen, it helps to understand how the heart works. Figure 1: How the heart functions electrically The heart's natural pacemaker – the SA node – sends out regular electrical impulses from the top chamber (the atrium) causing it to contract and pump blood into the bottom chamber (the ventricle). The electrical impulse is then conducted to the ventricles through a form of 'junction box' called the AV node. The impulse spreads into the ventricles, causing the muscle to contract and to pump out the blood. The blood from the right ventricle goes to the lungs, and the blood from the left ventricle goes to the body. The heart has four chambers – two at the top (the atria) and two at the bottom (the ventricles). The normal trigger for the heart to contract arises from the heart's natural pacemaker, the SA node, which is in th...
Read more

A Boy Is 1.50m Tall And Can Just See His Image In A Vertical Plane Mirror 3.0m Away. His Eyes Are 1.40m From The Floor Level. Determine The Vertical D

Image
A boy is 1.50m tall and can just see his image in a vertical plane mirror 3.0m away. His eyes are 1.40m from the floor level. Determine the vertical dimension and elevation of the shortest mirror in which he could see his full image.   Answer: The elevation is 70cm and the dimension of the shortest mirror is 75cm Explanation: In this problem, we need to analyze the position of the boy facing a plane vertical mirror and show measurements. I have provided an illustration below. From the illustration, AC represents the shortest mirror to view his image and CD represents the elevation. Solving the problem From the illustration, the height of the boy is 1.50m and his eye level from the floor is 1.40m, so this means that there is a difference of 0.1m = 10cm. Now, we create intersecting lines from the head of the boy to the eye of the image formed from the mirror and vice-versa where AB = 5 cm and is also CB = 5cm. Now, let us create another intersecting line from the eye of the boy to t...
Read more