Respuestas
1. x² - 15= 21. X=6
2. x² + 23= 104. X=9
3. x² + 48= 192. X=12
4. x² - 17= 208. X=15
5. x² - 25= 299. X=18
6. x² + 35=365. X=18.1659021246
7. x² - 18=343. X=19
8. x² - 54= 571. X= 25
9. x² - 20= 764. X= 28
10. x² + 14=886. X=29.5296461205
ecuaciones cuadranticas y con el procedimiento
1.) x² - 15 = 21
x² = 21 + 15
x² = 36
x = √36
x = 6 ó x = -6
2) x² + 23 = 104
x² = 104 + 23
x² = 127
x = √127 ≈ 11,2694 ó x ≈ -11,2694
3) x² + 48 = 192
x² = 192 - 48
x² = 144
x = √144
x = 12 ó x = -12
4) x² - 17 = 208
x² = 208 + 17
x² = 225
x = √225
x = 15 ó x = -15
5) x² - 25 = 299
x² = 299 + 25
x² = 324
x = √324
x = 18 ó x = -18
6) x² + 35 = 365
x² = 365 - 35
x² = 330
x = √330
x ≈ 18,1659 ó x ≈ -18,1659
7) x² - 18 = 343
x² = 343 + 18
x² = 361
x = √361
x = 19 ó x = -19
8) x² - 54 = 571
x² = 571 + 54
x² = 625
x² = √625
x = 25 ó x = -25
9) x² - 20 = 764
x² = 764 + 20
x² = 784
x = √784
x = 28 ó x = -28
10) x² + 14 = 886
x² = 886 - 14
x² = 872
x = √872
x ≈ 29,5296 ó x ≈ -29,5296