Answer:
2x+12 simplified is x+4
1:3
Step-by-step explanation:
5 is 1/3 of 15
hope this helps! :)
A
49y² - x² ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b) , then
49y² - x²
= (7y)² - x²
= (7y - x )(7y + x) → A
