Question

4. Find using identity: (x+3)2​

Answer 1

put a = x and b = 3 in given identity. (x + 3)² = x² + 9 +6x ans.

Answer 2

$= {( x + 3)}^{2}$

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

$= {x}^{2} + {3}^{2} + 2 \times x \times 3$

$= {x}^{2} + 9 + 6x$