Question

Simplify:-(a2+2ab+b2)-3 (a2-b2)

Answer 1

$\huge\bf\green{❥solution}$

$=> ({a}^{2} + 2ab + {b}^{2} )- 3( {a}^{2} - {b}^{2})$

$=> {a}^{2} + 2ab + {b}^{2} - 3 {a}^{2} - 3 {b}^{2}$

$=> {a}^{2} - 3 {a}^{2} + 2ab + {b}^{2} - 3 {b}^{2}$

$=> - 2 {a}^{2} + 2ab - {b}^{2}$

$=> 2 {a}^{2} - 2ab + 2 {b}^{2}$

Hope it will helpful for you..

Answer 2

sɪᴍᴘʟɪғɪᴄᴀᴛɪᴏɴ-:

$\pink\looparrowright$$\sf{a}^{2}$$\sf{+ 2ab}$ + $\sf{{b}^{2}}$ - $\sf{3 {a}^{2} - 3}$ $\sf{b}^{2}$

$\pink\looparrowright$$\sf{{a}^{2} - 3 {a}^{2}}$ + $\sf{2ab + {b}^{2}}$ - $\sf{3 {b}^{2}}$

$\pink\looparrowright$$\sf{- 2 {a}^{2}}$ + $\sf{2ab - {b}^{2}}$

$\pink\looparrowright$$\sf{2 {a}^{2}}$- $\sf{2ab + 2 {b}^{2}}$