Answer:
you need to simplify them like 2n+6 simplifird if 2.(n+3)
Step-by-step explanation:
Answer:
180-78=102
Step-by-step explanation:
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