Question

(a + b)2 = a2 + b2 + 2ab (answer quick)​

Answer 1

Step-by-step explanation:

(a+b)2=(a+b)*×(a+b)

= a×a+a×b+b×a+b×b

= a2+ab+ab+b2

=a2+2ab+b2

=a2+b2+2ab. proved

Answer 2

Answer:

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Step-by-step explanation:

i.e. (a+b)2 = a2 + 2ab + b2

Hence Proved. This simple formula is also used in proving The Pythagoras Theorem. Pythagoras Theorem is one of the first proof in Mathematics