Question

add each pair in expression a+b+2 and a-b-1​

Answer 1

Answer:

$(a + b + 2) + (a - b - 1) \\ \\ = (a + a) + (b - b) + (2 - 1) \\ \\ = 2a + 0 + 1 \\ \\ 2a + 1$

Answer 2

Answer:-

$(a + b + 2) + (a - b - 1)$

$= (a + a) + (b - b) + (2 - 1)$

$= 2a + 0 + 1$

$= 2a + 1$

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