Question

${a}^{4} + \: 2 {a}^{2} {b}^{2} + {b}^{2}$
plz answer this q ... plz plz pl ​

Answer 1

Step-by-step explanation:

${a}^{4} + \: 2 {a}^{2} {b}^{2} + {b}^{2} \\ \\ {a}^{4} + 2 {a}^{2} {b}^{2} + {b}^{4} - {b}^{4} + {b }^{2} \\ \\ ( {a}^{2} + {b}^{2} ) {}^{2} - {b}^{2} ({b}^{2} - 1) \\ \\ ( {a}^{2} + {b}^{2} ) {}^{2} - {b}^{2} [\sqrt{( {b}^{2} - 1) }] {}^{2} \\ \\ ( {a}^{2} + {b}^{2} ) {}^{2} - [ {b} \sqrt{( {b}^{2} - 1) }]{}^{2} \\ \\ [ {a}^{2} + {b}^{2} + b \sqrt{ {b}^{2} - 1 } ][ {a}^{2} + {b}^{2} - b \sqrt{ {b}^{2} - 1} ]$