Saved Bookmarks
| 1. |
Factotise: 16(x+y)^2 - 25(x-y)^2 |
|
Answer» -STEP explanation:4^2(x+y)^2 - 5^2(x-y)2= (4(x+y))^2 - (5(x-y))^2This is in the form a^2-b^2 = (a-b)(a+b)So,a= 4(x+y)b = 5(x-y)(4(x+y) - 5(x-y)) (4(x+y) + 5(x-y)) |
|