Question

y+y=13-2(a)^2
rpd vă rog​

Answer 1

Răspuns:

$y + y = 13 - 2 ( a ) ^ { 2 }$

Rezolvare a:

$a=\frac{\sqrt{26-4y}}{2}$

$a=-\frac{\sqrt{26-4y}}{2}\text{, }y\leq \frac{13}{2}$

Rezolvare y:

$y + y = 13 - 2 ( a ) ^ { 2 }$

$2y=13-2a^{2}$

$\frac{2y}{2}=\frac{13-2a^{2}}{2}$

$y=\frac{13-2a^{2}}{2}$

$y=\frac{13}{2}-a^{2}$