Question

$- 4x^{2} + 25 = 0$
Cine ma ajuta e cel mai tare
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Answer 1

Răspuns:

$- 4x^{2} + 25 = 0 \\ \\ - 4 {x}^{2} = - 25 \: \: ( \times -1 ) \\ \\ 4 {x}^{2} = 25 \\ \\ {x}^{2} = \frac{25}{4} \\ \\ x = \sqrt{ \frac{25}{4} } \\ \\ x = \frac{5}{2}$

Succes! ♡︎♥︎♡︎

Answer 2

Răspuns:

-4x²+5²=0

5²=4x²

25=4x²

x²=25/4

x=rad25/4

x=5/2