1) X² - 0.04 = X² = 0.0X = ±√0.0X = ±0.2
2) X² - 81 = X² = 8X = ±√8X = ±9
3) Y² - 1 9/16 = Y² = 1 9/16 = 1 + 9/16 = 16/16 + 9/16 = 25/1Y = ±√(25/16) = ±5/4
4) Y² - 2 1/4 = Y² = 2 1/4 = 2 + 1/4 = 8/4 + 1/4 = 9/Y = ±√(9/4) = ±3/2
1) X² - 0.04 =
X² = 0.0
X = ±√0.0
X = ±0.2
2) X² - 81 =
X² = 8
X = ±√8
X = ±9
3) Y² - 1 9/16 =
Y² = 1 9/16 = 1 + 9/16 = 16/16 + 9/16 = 25/1
Y = ±√(25/16) = ±5/4
4) Y² - 2 1/4 =
Y² = 2 1/4 = 2 + 1/4 = 8/4 + 1/4 = 9/
Y = ±√(9/4) = ±3/2