JOEVELYNBLAST7GO
Answered

Direction: Find the solutions of the following quadratic equation by extracting square roots.

1. x² = 16
2. y² + 3 = 28
3. x² - 9 = 0
4. (y + 8)² = 144
5. x² = 20​

Sagot :

JAXXCALGO

Answer:

r = 10i

i = imaginary number

Step-by-step explanation:

Transpose 100 to the other side and change signs

r2 = -100

Extract the square root of both sides, since it is the negative number, first find the square root of it.

r = 10

put i on it because it was a negative,

r = 10i

Step-by-step explanation:

OMBOSADRIAN1GO

1.x²=16

√x²=√16

x=4

2.y²+3=28

√y²=√25

y=5

3.x²-9=0

√x²=√9

x=3

4.y²+16y+64=144

16y²=144-64

16y²/16=80/16

√y²=√5

y=2.24

5.x=20

√x²=√20

x=4.47

Pa BRAINLIEST na lng Po at pa follow para sa iba pang katanungan

Go Educations: Other Questions