Question

( a + b ) ( a - b ) = ________.​

Answer 1

$(a + b)(a - b) = {a}^{2} - {b}^{2}$

Proof:

$(a + b)(a - b)$

$= a(a - b) + b(a - b)$

$= {a}^{2} - ab + ba - {b}^{2}$

$= {a}^{2} - {b}^{2}$

$(ab = ba)$

Hope this helps!

Answer 2

Answer:

bro it's very simple

Step-by-step explanation:

it's a algebraic identity

$(a + b)(a - b) = {a}^{2} - {b}^{2}$

hope it helps

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