Question

factorise using identity
(a+8)^2-(b+5)^2​

Answer 1

Answer:

(a+b+13)(a-b+3)

Step-by-step explanation:

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

similarly

$(a+8)^{2} -(b+5)^{2} = (a+8 + b+ 5)(a+8 - b - 5)$

=> (a+b+13)(a-b+3)

Answer 2

Step-by-step explanation:

we know a^2-b^2 = (a+b)(a-b)

(a+8+b+5)(a+8-b-5)

(a+b+13)(a-b+3)