Question

8 algebric identities of math

Answer 1

1) (a+b)² = a²+2ab+b²

2) (a-b)² = a²-2ab+b²

3) (a+b)(a-b) =a²-b²

4) (x+a)(x+b) = x²+(a+b)x+ab

5) (x+a)(x-b) = x-b(a-b)x-ab

6) (x-a)(x-b) = x²-(a+b)x+ab

7) (a+b)³ = a³+b³+3ab(a+b)

8) (a-b)³ = a³-b³-3ab(a-b)

Hope this helps you friend
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Answer 2

$1). \: \: (x + y) {}^{2} = (x) {}^{2} + (y) {}^{2} + 2xy \\ \\ 2). \: \: (x - y) {}^{2} = (x) {}^{2} + (y) {}^{2} - 2xy \\ \\ 3). \: \: (x) {}^{2} - (y) {}^{2} = (x + y)(x - y) \\ \\ 4). \: \:( x + y + z) {}^{2} = (x) {}^{2} + (y) {}^{2} + (z ){}^{2} + 2xy + 2yz + 2xz \\ \\ 5).(x + a)(x + b) = (x) {}^{2} + (a + b)x +ab \\ \\ 6). \: \: (x) {}^{3} - (y) {}^{3} = ( x - y)(x {}^{2} + y {}^{2} + xy) \\ \\ 7).(x) {}^{3} + (y) {}^{3} = (x + y)(x {}^{2} + y {}^{2} - xy) \\ \\ 8). \: \: (x + y) {}^{3} = x {}^{3} + y {}^{3} + 3xy(x + y) \\ \\ \\ \\ please \: mark \: as \: brainliest.$