Question

factorize of (10.3)^2​

Answer 1

${(10.3)}^{2} => {(10 + 0.3)}^{2}$

Using identity, (a+b)^2 = a^2 + b^2 + 2ab

so ,

$= {(10)}^{2} + {(0.3)}^{2} + 2 \times 10 \times 0.3 \\ \\ = 100 + 0.09 + 6 \\ \\ = 106.09$