Answer:
The answer to your question is below
Step-by-step explanation:
a) x² = 196
x = ±√196
x = ± 14 or x = -14 and x = 14
b) 9x² = 49
x² = 49/ 9
x = √(49/9)
x = ±7/3
x = ± 2.3 or x = 2.3 and x = -2.3
c) 4x² - 8 = 56
4x² = 56 + 8
4x² = 64
x² = 64/4
x² = 16
x = ±√16
x = ±4 or x = 4 and x = -4
d) x² = 160
x = ± √160
Find the prime factors of 160
160 2
80 2
40 2
20 2
10 2
5 5
1 160 = 2⁵5
x = √2⁴10
x = ±4√10
e) x² = 72
Find the prime factor of 72
72 = 2²3²6
x = √2²3²6
x = ±6√6 or
x = ±8.5
