Respuesta :

rishavbasista

Answer:

The formula of (a+b)² and (a-b)² are as follows:

Step-by-step explanation:

(a+b)²=a²+2ab+b²

(a-b)²=a²-2ab+b²

VirαtKσhli

Step-by-step explanation:

These are identities .

[tex]:\implies [/tex] ( a + b)²

[tex]:\implies [/tex] ( a + b) ( a + b)

[tex]:\implies [/tex] a ( a + b ) + b ( a + b)

[tex]:\implies [/tex] a² + ab + ab + b²

[tex]:\implies [/tex] a² + 2ab + b²

  • Now ( a - b)²

[tex]:\implies [/tex] ( a - b)²

[tex]:\implies [/tex] ( a - b) ( a - b)

[tex]:\implies [/tex] a ( a - b ) - b ( a - b)

[tex]:\implies [/tex] a² - ab - ab + b²

[tex]:\implies [/tex] a² - 2ab + b²

ACCESS MORE
ACCESS MORE
ACCESS MORE
ACCESS MORE

Otras preguntas