Answer:
your answer would be -13.8y
Answer:
x = ± 5
Step-by-step explanation:
x² - 25 = 0 ( add 25 to both sides )
x² = 25 ( take square root of both sides )
x = ±
= ± 5
That is x = - 5, x = 5
To round it to the nearest unit it would be 38. To round it to the nearest ten it would be 40.