Question

${ x}^{2} + 18 + 81$
plis porfa​

Answer 1

${x}^{2} + 18 + 81 \\ \bf {x}^{2} + 99$

....

${x}^{2} + 18x + 81 \\ {x}^{2} + 2 \times x \times 9 + 81 \\ {x}^{2} + 2 \times x \times 9 + {9}^{2} \\ \bf(x + 9 {)}^{2}$