Question

x2-2x-4=0 solve by factorisation method ​

Answer 1

..Question..

Solve by factorisation method

➪ x² - 2x - 4 = 0

..Answer..

ㅤㅤ➪ x² - 2x - 4 = 0

ㅤㅤ➪ x² - ( 2 + 2 )x - 4 = 0

ㅤㅤ➪ x² - 2x - 2x - 4 = 0

ㅤㅤ➪ x ( x - 2 ) - 2 ( x - 2 ) = 0

ㅤㅤ➪ ( x - 2 ) ( x - 2 ) = 0

☯︎ The factors are = ( x - 2 ) or ( x - 2 )

ㅤㅤㅤ➪ x - 2 = 0 ㅤ, ㅤ➪ x - 2 = 0

ㅤㅤㅤ➪ x = 0 + 2ㅤ , ㅤ➪ x = 0 + 2

ㅤㅤㅤ➪ x = 2ㅤㅤㅤ, ㅤ➪ x = 2

°•° both the values are positive

•°• The factor is ( x - 2 )

_____________________

Give a Look Here :-

ㅤㅤ☯︎ ( a + b )²

➪ a² + 2ab + b²

ㅤㅤ☯︎ ( a - b )²

➪ a² - 2ab + b²

ㅤㅤ☯︎ ( a + b ) ( a - b )

➪ a² - b²

ㅤㅤ☯︎ ( a + b )³

➪ a³ + 3a²b + 3ab² + b³

ㅤㅤ☯︎ ( a - b )³

➪ a³ - 3a²b - 3ab² + b³

ㅤㅤㅤ꧁ ʙʀᴀɪɴʟʏ×ᴋɪᴋɪ ꧂

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