Question

Va rog urgent dau coroana!!
4-b=4
a pătrat - b pătrat=24
a+b=?
Va roggg

Answer 1

Răspuns:

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

Explicație pas cu pas:

Saluare!

$\bf 4 - b = 4$

$\bf 4 = 4 + b$

$\bf b = 4 - 4$

$\boxed{\bf b = 0}$

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

$\bf{a}^{2} - 0 = 24$

$\bf{a}^{2} = 24 \implies a = \sqrt{24} \implies \boxed{ \bf a = 2 \sqrt{6} }$

$\bf a + b = 2 \sqrt{6} + 0 \implies \boxed{ \bf a + b = 2 \sqrt{6} }$

==pav38==