Hey there Rosy! I did this recently and the answer is:
1 : 4
2 to 8
18
---
72
Answer:
-2 x (5x-12)
Step-by-step explanation:
Hey there!!
Basic formula :
... a² - b² = ( a + b ) ( a - b )
Equation given :
... 81x² - 25
... ( 9x )² - ( 5 )²
... ( 9x + 5 ) ( 9x - 5 )
Hope it helps!!