Question

Rozwiaz rownania

a) \frac{(x+2)^{2}}{3}-\frac{(4-x)^{2}}{2}=\frac{-(x^{2}+40)}{6}

b) (x+\sqrt{2)}^{2}-x={x}^{2}+4x-2

Answer 1

 ? /6

2 x^{2} +8 +8x -3 * ( 16 + x^{2} - 8x) = - x^{2} - 40

32 x +8 +48 = - 40

32x=96

x=3

 

 

(x)^{2} + 2* *x +2 -x = {x}^{2}+4x-2

 

2* x - 5x = -4 

 x(2 -5) = -4

x= -4 /(  -5)

x= 4 / 5 - 

x=(20 +8  ) /17