Question

calculati
$\sqrt{ {30}^{2} - {24}^{2} }$

Answer 1

√(30²-24²)=√[(30-24)(30+24)]=√(6·54)=√324=18

Answer 2

$\sqrt{ {30}^{2} - {24}^{2} } = \sqrt{(30 - 24) \times (30 + 24)} = \sqrt{6 \times 54} = \sqrt{324} = \sqrt{ {18}^{2} } = 18$