Question

Factorise the following expression. And name the identity used to factorise. Please help. Class 8 question


i) s² + 2s - 3
ii) r²- q²p²​

Answer 1

Answer:

1} s^2 + 2s - 3

s^2 + 3s - 1s - 3

s(s+3)-1(s+3)

(s+3)(s-1)

sry friend I don't know solution of second one