1) X² - 0.04 = 0X² = 0.04X = ±√0.04X = ±0.2
2) X² - 81 = 0X² = 81X = ±√81X = ±9
3) Y² - 1 9/16 = 0Y² = 1 9/16 = 1 + 9/16 = 16/16 + 9/16 = 25/16Y = ±√(25/16) = ±5/4
4) Y² - 2 1/4 = 0Y² = 2 1/4 = 2 + 1/4 = 8/4 + 1/4 = 9/4Y = ±√(9/4) = ±3/2
1) X² - 0.04 = 0
X² = 0.04
X = ±√0.04
X = ±0.2
2) X² - 81 = 0
X² = 81
X = ±√81
X = ±9
3) Y² - 1 9/16 = 0
Y² = 1 9/16 = 1 + 9/16 = 16/16 + 9/16 = 25/16
Y = ±√(25/16) = ±5/4
4) Y² - 2 1/4 = 0
Y² = 2 1/4 = 2 + 1/4 = 8/4 + 1/4 = 9/4
Y = ±√(9/4) = ±3/2