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受欢迎的代数 >

2x^3+16x^2=0

解答

2 x^{3} + 16 x^{2} = 0

解答

x = 0, x = - 8

求解步骤

2 x^{3} + 16 x^{2} = 0

因式分解

2 x^{3} + 16 x^{2} : 2 x^{2} (x + 8)

2 x^{2} (x + 8) = 0

使用零因数法则： If

ab = 0

then

a = 0

or

b = 0

x = 0 or x + 8 = 0

解

x + 8 = 0 : x = - 8

解为

x = 0, x = - 8

作图

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