Question

algebric id regarding power 4specially plese answer it fast i chose this answer as brainlist

Answer 1

$a ^{2} - b ^{2} = (a + b)(a - b)$
$(a + b) ^{2} = a ^{2} + b ^{2} + 2ab$
$( a-b ) ^{2} = a ^{2} - b ^{2} + 2 ab$
$(x + a)(x + b) = x ^{2} + (a + b)x + ab$
$(a + b + c)^{3} = {a}^{2} + {b}^{2} + {c}^{2} + \\ 2ab + 2bc + 2ca$
$( {a + b})^{3} = a ^{3} + b^{3} + \\ 3ab(a + b)$
$(a -b )^{3} = a^{3} - {b}^{3} - \\ 3ab(a - b)$
${a}^{3} + {b}^{3} + {c}^{3} + - 3abc = \\ (a + b + c) \\ ( {a}^{2} + {b}^{2} + {c}^{2} - ab - bc - ca)$


May this help you ....