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derivative of f(x) = 9x³ - 4x² + 4x
求导 f(x) = 10x³ + x² - x
derivative of 4x³ + 5x² - 7x
2x² + 15x + 30 = 0
4x² - 2x - 20 = 0
求目标函数 z = 2x + 6y 的最大值,约束条件: x + y ≤ 15, x ≥ 0, y ≥ 0
Giải bất phương trình: (1x - 3)/(5x - 6) ≥ 0
一个长方形花园的周长为32米,面积为51平方米。求花园的长和宽。 解方程: 14x² - 28x + 108 = 0
Find the Laplace transform: Lt·e^(2t)
Solve the quadratic equation: 5x² + 5x - 10 = 0
x^4 + -4x² + 2 = 0
hệ phương trình x + 2y = 15, 2x - 5y = 10
hệ phương trình x + 3y = 18, 4x - y = 6
Find the intervals where f(x) = 2x³ - 9x² + 4x is increasing and decreasing.
set theory A = 1,9,9,4,2, B = 7,10,4,6,2
mean of 68 95 40 39 49 48 65 66
tính trung bình 72 7 61 51 11
x² - 8x + 19 = 0
求目标函数 z = 5x + 5y 的最大值,约束条件: x + y ≤ 20, x ≥ 0, y ≥ 0
Solve the inequality: 2x - 15 ≤ 0
Solve the quadratic inequality -1x² + -1x + 6 ≥ 0
Solve the inequality: 10x - 16 ≥ 0
求目标函数 z = 3x + 2y 的最大值,约束条件: x + y ≤ 14, x ≥ 0, y ≥ 0
Solve: (4x - 10)/(1x - 4) ≥ 0