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受欢迎的代数 >

3c^3+15c^2-18c=0

解答

3 c^{3} + 15 c^{2} - 18 c = 0

解答

c = 0, c = 1, c = - 6

求解步骤

3 c^{3} + 15 c^{2} - 18 c = 0

因式分解

3 c^{3} + 15 c^{2} - 18 c : 3 c (c - 1) (c + 6)

3 c (c - 1) (c + 6) = 0

使用零因数法则： If

ab = 0

then

a = 0

or

b = 0

c = 0 or c - 1 = 0 or c + 6 = 0

解

c - 1 = 0 : c = 1

解

c + 6 = 0 : c = - 6

解为

c = 0, c = 1, c = - 6

作图

流行的例子

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