Prove the identity (a + b)^2 = a ^2 + 2ab + b^2 for all natural numbers a, b.

Step-by-step explanation:

To prove the identity we just manually compute the left hand side of it, simplify it and check that we do get the right hand side of it:

(that's the definition of squaring a number)

(we distribute the product)

(we just use square notation instead for the first and last term)

(since product is commutative, so that ab=ba)

(we just grouped the two terms ab into a single term)

29.5977692753

step-by-step explanation:

the answer is 5/14.

hope this .