which one is an identity 1. (x-3)2 2. (x-3)2>5 3. (x-3)2=1-6x 4. (x-3)21-6x+9
the 2's after the brackets is squared
Please help need it for my exam tomorow
None of them is an identity. Although, I think you may have meant for number 4 that (x-3)^2= x^2-6x+9 in which case it is an identity. An identity is something which is always true for all values of x and contains an equals sign,often denoted by ≡ though rather than = but if you did that here it would give away what was an identity.