Question

Factorise 100x2 – 121y2​

Answer 1

Answer:

Step-by-step explanation:

100x^2 - 121y^2

Here 100 is 10^2 and 121 is 11^2.

(10^2))x^2) - (11^2)(y^2)

(10x)^2 - (11y)^2 [We take the square common.]

(10x - 11y)(10x + 11y) [Since, a^2 - b^2 = (a + b)(a - b)]

Answer 2

Answer:

(10x - 11y)(10x + 11y)

Step-by-step explanation:

Here 100 is 10^2 and 121 is 11^2.

(10^2))x^2) - (11^2)(y^2)

(10x)^2 - (11y)^2 [We take the square common.]

(10x - 11y)(10x + 11y) [Since, a^2 - b^2 = (a + b)(a - b)]

Hope this Helps : )