27X^3-8 = 0 27X^3 = 8 X^3 = 8/27 X = cubic root of 8/cubic root of 27 = 2/3
(x3 - 8) is factored thus: (x - 2)(x2 + 2x + 4) The easiest way to do this is to remember the formula: (a3 - b3) = (a - b)(a2 + ab + b2)
(3x + 8)(3x - 8)
(2x + 5)(4x^2 - 10x + 25)
Answer: (x - 2)(x² + 2x + 4)Factor the difference of cubes:a³ - b³ = (a - b)(a² + ab + b² )note 8 = 2³ = 8 ⇒ b = 2 , with a = xSox³ - 8= x³ - 2³= (x - 2)(x² + 2x + 2²) = (x - 2)(x² + 2x + 4)
27X^3-8 = 0 27X^3 = 8 X^3 = 8/27 X = cubic root of 8/cubic root of 27 = 2/3
the answer is (3x-2)(9x squared+6x+4)
20x2 - 27x -8 20 * -8 is -160, and -32 and 5 add to -27 20x2 - 32x + 5x - 8 4x(5x-8) + 1(5x-8) (4x + 1)(5x-8)
I also need to know the answer to this problem. Can anyone answer it?
8(y - 1)(y^2 + y + 1)
8(y - 1)(y^2 + y + 1)
All that is factorable here is the common factor t.t3 - 8tt(t2 - 8)======
9 minus 8
000000
0.2963
(x + 1)(x - 8)
x 3-8