Question

which of the following is an identity a plus b minus b is equals to a square + b square b a + b square is equal to a square + 2 a b + b square c a minus b square is equals to 2 minus 2 a b + 2 b square d all of the above
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Answer 1

Step-by-step explanation:

Step-by-step explanation:

a² - b² = (a + b)( a - b)

PROOF:

==> a² + ab - ab - b²

==> a( a + b) - b( a + b )

==>. ( a+ b)(a - b )

HENCE PROVED.

hope you understand the technique.