Question

va rog nu stiu cum se face

Answer 1

${a}^{2} - {b}^{2} = (a - b)(a + b)$

${a}^{2} - {b}^{2} = 24$

$a - b = 2 \sqrt{2}$

$24 = 2 \sqrt{2} (a + b)$

$a + b = \frac{24}{2 \sqrt{2} }$

$a + b = \frac{12}{ \sqrt{2} }$

$a + b = \frac{12 \sqrt{2} }{2}$

$a + b = 6 \sqrt{2}$