Question

list out the 4 IDs of algebric/factorization i want the proper answer does who dont know dont need to answer. No spamming​

Answer 1

Hey mate,

1.(a + b)2 = (a +b) (a + b)

= a(a + b) + b(a +b)

= a2 + ab + ba + b2 (since ab = ba)

= a2 + 2ab + b2

2.(x +a) (x + b) = x(x + b) + a(x + b)

Hence, we can write = x2 + bx +ax + ab

Or (x + a) (x + b) = x2 + (a +b)x +ab

3.a + b) (a – b). we have (a + b) (a – b)=a(a – b) + b(a –b)

Or a2– ab + ba – b2 = a2 – b2 (since ab= ba)

Or (a +b) (a – b) =a2 – b2

Hope it will help you.