Question

Urgent, dau coroana❤️​

Answer 1

Răspuns:

$aria \: 1 + aria \: 2 = aria \: 3 \\ aria \: patrat = {latura}^{2} \\ {4}^{2} + {(x - 1)}^{2} = {(x + 2)}^{2} \\ 16 + {x }^{2} - 2x + 1 = {x}^{2} + 4x + 4 \\ {x}^{2} - {x}^{2} - 2x - 4x + 16 + 1 - 4 = 0 \\ - 2x + 13 = 0 \\ x = \frac{13}{2} = 6.5$