sqrt(y^2+5)=y^2+1

해법

y^{2} + 5 = y^{2} + 1

y = \frac{- 1 + 17}{2}, y = - \frac{- 1 + 17}{2}

십진법

y = 1.24962 \dots, y = - 1.24962 \dots

솔루션 단계

y^{2} + 5 = y^{2} + 1

양쪽을 제곱:

y^{2} + 5 = y^{4} + 2 y^{2} + 1

y^{2} + 5 = y^{4} + 2 y^{2} + 1

y^{2} + 5 = y^{4} + 2 y^{2} + 1

해결 :

y = \frac{- 1 + 17}{2}, y = - \frac{- 1 + 17}{2}

y = \frac{- 1 + 17}{2}, y = - \frac{- 1 + 17}{2}

솔루션 확인:

y = \frac{- 1 + 17}{2}

참

, y = - \frac{- 1 + 17}{2}

참

해결책은

y = \frac{- 1 + 17}{2}, y = - \frac{- 1 + 17}{2}