Makakuha ng mga sagot ng eksperto sa iyong mga tanong sa IDNStudy.com. Ang aming mga eksperto ay nagbibigay ng mabilis at eksaktong sagot upang tulungan kang maunawaan at malutas ang anumang problema.

Direction: Solve the following quadratic equations by extracting square roots.

1. x² = 16
2. 2x² = 8
3. x² - 1 = 0
4. x² - 45 = 0
5. x² = 64/81
6. x² - 100 = 0
7. (x² - 4) = 169
8. 4x² - 225 = 0
9. 2x² = 50
10. x² = 81


yung matinong answer sana.​


Sagot :

Answer:

1. x²=16

x² -16=0

(x+4) (x-4)=0

x+4=0 or x-4=0

x= -4 or x=4

Answer:x = -4 or x=4

2. 2x²=8

x²=8/2

x²=4

x=√4 or x = -√4

x=2 or x= -2

Answer: x=2 or x= -2

3. x²-1=10

x²=10+1

x²=11

x=√11 or x= -√11

Answer: x=√11 or -√11

4. x²-45=0

x²=45

x=√45 or x-√45

x=3√5 or x-3√5

Answer: x=3√5 or x-3√5

5. x=64/81

x=-√64/81

or

x=√64/81

x=8/9 or x=-8/9

Answer: x=8/9 or =x-8/9

Step-by-step explanation:

i hope it's help po