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sqrt(1-2x)+sqrt(x+5)=4

الحلّ

1 - 2 x + x + 5 = 4

الحلّ

x = - \frac{20}{9}, x = - 4

+1

خطوات الحلّ

1 - 2 x + x + 5 = 4

Remove square roots

9 x^{2} + 120 x + 400 = 64 x + 320

9 x^{2} + 120 x + 400 = 64 x + 320

حلّ:

x = - \frac{20}{9}, x = - 4

x = - \frac{20}{9}, x = - 4

افحص الإجبات:

x = - \frac{20}{9}

صحيح

, x = - 4

صحيح

The solutions are

x = - \frac{20}{9}, x = - 4

أمثلة شائعة

7 - 3 x - x = 7

x^{0.5} = 5

6w+7w^{1/2}-20=0

6 w + 7 w^{\frac{1}{2}} - 20 = 0

2x-3x^{1/2}+1=0

2 x - 3 x^{\frac{1}{2}} + 1 = 0

sqrt(3-2\sqrt{x)}=sqrt(x)

3 - 2 x = x