I believe when X-3=5 the answer would be 8 because 5+3=8.
It is x = -5
x3 + 2x2 - 8x + 5 = 0 x(2x - 8) + 5 = 0
Realising that 125 is a perfect cube, this is actually pretty easy: x3 + 125 = 0 x3 = -125 x = -5
x=4.
X3-5=3 X3=3+5 X3=8 cube root of X3=cube root of 8 X=1.68 I hope this could help. There's not really any good ways to write algebra in a normal text box.
It is x = -5
x + 3 = 6xx - x + 3 = 6x - x3 = 5x3/5 = 5x/53/5 = x
x^3=2x+5 x^3-2x-5=0 Graph the equation or use a calculator. x= 2.09455148
x3 - 3x2 - 9x - 5 = 0 (x + 1)(x2 - 4x - 5) = 0 (x + 1)(x - 5)(x + 1) = 0 x ∈ {-1, 1, 5}
p x = 20 x5 - 20 x4 + 24 x2 q x = 4 x2 p = 20 x4 - 20 x3 + 24 x, if xis not equal to 0 p / qx = ( 20 x4 - 20 x3 + 24 x) / (4 x2) = (5 x4 - 5 x3 + 6 x) / x2 So p / qx = 5 x2 - 5 x + 6/x if x is not equal to 0
x3 + 2x2 - 8x + 5 = 0 x(2x - 8) + 5 = 0
Realising that 125 is a perfect cube, this is actually pretty easy: x3 + 125 = 0 x3 = -125 x = -5
The math problem X3 times 64/334 equals 4/7. Getting this answer you will first have to find the value of X.
x3+x2+x First, factor out the x: x(x2+x+1) Could stop there, but the rest is factor-able using imaginary numbers: x(x+.5(1+i(3).5)(x+.5(1-i(3).5), where i = (-1).5, or sqrt(-1)
x=4.
They are -1, 1 and 5.
X3 - 4 = 2 X3 = 6 X = 61/3 X = about 1.817