Question

(X₁ + X₂)²

Find the square.

Show your work

Answer 1

Explanation:

`{ \purple{ \tt{(X₁ + X₂)²}}}`

This above problem is in the form of

`{ \blue{ \tt{ {(a + b)}^(2)}}}`

where the expanded form of

`{ \blue{ \tt {(a + b)}^(2)}} = { \green{ \bold{ {a}^(2) + {b}^(2) + 2ab}}}`

then the (X₁ + X₂)² answer will be

`{ \purple{ \tt{(X₁ + X₂)²}}} = { \purple{ \tt{ {X₁}^(2) + {X₂}^(2) + 2X₁X₂}}}`