Question

11. What are the zeros for the following quadratic relation: *

y = 5x² - 1125
O x = 0
O x = 5,15
O x= -15,5
O x=-15, 15

Answer 1

x=15,-15

Explanation:

5x^2-1125=0

5x^2=1125

x^2=225

x=square root of 225

x=+15 or -15