Answer:
60
Step-by-step explanation:
8640/60 is 144. 144 is a perfect square. 12*12 is 144
- 3 - (- 8) - (- 2) = x
Distribute the negatives to the numbers in the parentheses.
- 3 + 8 + 2
- 3 + 10
7
x = 7
I think the answer would be d
Answer:
(7y + 3x)(7y - 3x)
Step-by-step explanation:
a² - b² = (a + b)(a - b)
49y² - 9x² = (7y)² - (3x)² {a = 7y ; b - 3x}
= (7y + 3x)(7y - 3x)
