Answer:
x = 1/5 , and x = - 1/5
Step-by-step explanation:
25x² – 1 = 0
5²x² - 1² = 0
(5x - 1)(5x + 1) = 0
5x -1 = 0, 5x + 1 = 0
x = 1/5 , x = - 1/5
Answer:Jack is 9 and the father is 43
D
All real number less than 5
to get x by itself so divide 5 by 2 and then add 7 to the other side
2x-7=5
x-7=2.5
x=2.5+7
x=9.5
