Question

factorise

Please help​

Answer 1

Step-by-step explanation:

I hope this will help you

Answer 2

Step-by-step explanation:

substitute the formula

(a+b)^2=a^2+2ab+ b^2

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

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

Answer

a^2+2 ab+ b^2-5( a+b)( a -b)-24( a^2-2ab+b^2)

=-28a^2-18b^2+50ab