Question

write some formulas of quaradic equation

Answer 1

$(x + y )2 = x { }^{2} + y { }^{2} + 2xy$
$(x - y)2 = x {}^{2} - 2xy + y {}^{2}$
$x2 - y2 = (x + y)(x - y)$

Answer 2

ʜᴇʀᴇ ɪs ʏᴏᴜʀ ᴀɴsᴡᴇʀ

$1. \: (a + b)^{2} = {a}^{2} + 2ab + {b}^{2} \\ 2. \: (a - b)^{2} = {a}^{2} - 2ab + {b}^{2} \\ 3. \: {a}^{2} - {b}^{2} = (a + b)(a - b) \\ 4. \: {a}^{2} + {b}^{2} = {(a + b)}^{2} - 2ab$

Hope it's helpful

Answered by :-

@MissInfinite