Saved Bookmarks
| 1. |
(vi) $9 x^{2} y^{2}-16 \quad$ (vii) $\left(x^{2}-2 x y+y^{2}\right)-z^{2}$(viii) $25 a^{2}-4 b^{2}+28 b c-49 c^{2}$ |
|
Answer» vi) 9x^2y^2-16=(3xy+4)(3xy-4)vii) (x-y)^2-z^2=(x-y+z)(x-y-z)viii) (5a)^2-(2b-7c)^2=(5a-2b+7c)(6a+2b-7c) |
|