![(2y+1)^2-4y^2= 5](https://tex.z-dn.net/?f=%282y%2B1%29%5E2-4y%5E2%3D%205)
![4y^2 + 4y + 1 - 4y^2=5](https://tex.z-dn.net/?f=4y%5E2%20%2B%204y%20%2B%201%20-%204y%5E2%3D5)
![4y = 5 - 1](https://tex.z-dn.net/?f=4y%20%3D%205%20-%201)
![4y = 4](https://tex.z-dn.net/?f=4y%20%3D%204)
![y = 1](https://tex.z-dn.net/?f=y%20%3D%201)
Ответ:<em> </em><em>1</em>
( X^2 + Y^2 + 2XY ) / ( 3Y + 3X ) = [ ( X + Y)*( X + Y ) ] / [ 3 * ( Y + X ) ] =
= ( X + Y ) / 3 = 1/3X + 1/3Y
(-2)⁵x³ = -32x³
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(a + 3b) × 5 - (5a - 8b) = 5a + 15b - 5a + 8b = 23b
(-4)^2+p*(-4)+36=0; 16-4p+36=0; -4p= -52; p=(-52)/(-4)=13. Ответ: p=13.