Question

write all the 4
standard identities​

Answer 1

Answer:

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

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

a^2 - b^2 = (a+b) × (a-b)

(x+a) × (x+b) = x^2 + (a+b)×x + ab

Hope it helps you.

Answer 2

Answer:

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

2. (a+ b) * ( a - b) = a^2 - b^2

3. (a +b +c)^2 = a^2 + b^2 + c^2 + 2ab + 2bc + 2ca

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

Only these 4 are widely and mainly used..... PLz mark BRAINLIEST

Step-by-step explanation:

BRAINLIEST plz plz it took lot of effort plz