Activity 8: Extract Then Describe Me Solve Each Of The Following Quadratic Equations By Extracting Aquare Roots. Answer The Questions That Follow. 1.

Activity 8: extract then describe me Solve each of the following quadratic equations by extracting aquare roots. Answer the questions that follow. 1. 3r^2=12 2. X^2-7=0 3. 3r=18 4. X^2=150 5. X^2=9/16 6.(s-4)^2-81=0

 

Answer:

3r²=12

---  ----

3    3

r²=4

r=±√4

r=2 or r=−2

2. x²-7=0

x²=7

x=±√7

x=√7 or x=−√7

3. 3r=18

   ----  ---

    3    3

r=6

4. x²=150

x=±√150

x=5√6 or x=−5√6

5. x²=9/16

x=±√ 9 / 16

x=±3/4

x=3/4 or x= -3/4

6.(s-4)²-81=0

s²−8s=65

(b/2)²=16

s²−8s+_=65+_

s²−8s+16=65+16

s²−8s+16=81

(s−4)²=81

s−4=±√81

s=4±√81

s=4+9 or s=4−9

s=13 or s=−5

#JuneChallenge


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