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受欢迎的代数 >

3t^3-5t^2-2t=0

解答

3 t^{3} - 5 t^{2} - 2 t = 0

解答

t = 0, t = - \frac{1}{3}, t = 2

+1

十进制

t = 0, t = - 0.33333 \dots, t = 2

求解步骤

3 t^{3} - 5 t^{2} - 2 t = 0

因式分解

3 t^{3} - 5 t^{2} - 2 t : t (3 t + 1) (t - 2)

t (3 t + 1) (t - 2) = 0

使用零因数法则： If

ab = 0

then

a = 0

or

b = 0

t = 0 or 3 t + 1 = 0 or t - 2 = 0

解

3 t + 1 = 0 : t = - \frac{1}{3}

解

t - 2 = 0 : t = 2

解为

t = 0, t = - \frac{1}{3}, t = 2

作图

流行的例子

100*(x)^{43}=462.8370800000000…

100 \cdot (x)^{43} = 462.8370800000000 \dots

24 = x^{4}

24 = x^{6}

x^{3} + 5 xx + 11 x = 0

9a^3-441a=-4a^2+196

9 a^{3} - 441 a = - 4 a^{2} + 196