Question

factorise 49x²-36 factorise it​

Answer 1

Step-by-step explanation:

$49x²-36$

can be written as

$7x {}^{2} - 6 {}^{2}$

on using identity

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

$(7x - 6)(7x + 6)$

Answer 2

49x^2-36=(7x)^2-(6)^2

= (7x+6)(7x-6)

since a^2 -b^2= (a+b)(a-b)

ans.(7x+6)(7x-6)