Question

x² - y² + x² - y² Factorize it .​

Answer 1

Answer:

$2(x^{2} -y^{2} )$

Step-by-step explanation:

$x^{2} -y^{2} +x^{2} -y^{2} \\= x^{2} +x^{2} -y^{2} -y^{2} \\= 2x^{2} -2y^{2} \\=2(x^{2} -y^{2} )$

Answer 2

Answer:

2(x+y)(x-y)

Step-by-step explanation:

x² - y² + x² - y²

⇒2x² - 2y²

⇒2(x² - y²)

⇒2(x + y)(x - y)