If 3x = 81 then x = 27 and 27 cubed = 19683
5
x=4.
If you mean ((-2) x (-6)) - (3 x (-21)) then it equals 75. Hope this helps!
4X2+X3+3X+7Y+2X3 can only be simplified to 3X3+4X2+3X+7Y, because X3 and 2X3 are the only like terms.
x3 - 3x2 - 28x = x (x2 - 3x - 28) = x (x - 7) (x + 4)The numerical value of all this, of course, depends on the value of 'x',and it can change in a flash whenever the value of 'x' changes.
3 ln(x) = ln(3x)ln(x3) = ln(3x)x3 = 3xx2 = 3x = sqrt(3)x = 1.732 (rounded)
2x3 - 7 + 5x - x3 + 3x - x3 = 8x - 7
3x=50
5
x+2) by Algebraica Long Division. x^(3) + 3x^(2) + 3x + 2 ) = x^(2) + x + 1 -x^(3)- 2x^(2) ¬ 0 + x^(2) + 3x 0 - x^(2) - 2x ¬ 0 + 0 + x + 2 0 + 0 - x - 2 ¬ = 0 Hence answer is x^)2) + x + 1 ( Thos does NOT factor .
x=4.
(x3 + 4x2 - 3x - 12)/(x2 - 3) = x + 4(multiply x2 - 3 by x, and subtract the product from the dividend)1. x(x2 - 3) = x3 - 3x = x3 + 0x2 - 3x2. (x3 + 4x2 - 3x - 12) - (x3 + 0x2 - 3x) = x3 + 4x2 - 3x - 12 - x3 + 3x = 4x2 - 12(multiply x2 - 3 by 4, and subtract the product from 4x2 - 12)1. 4x(x - 3) = 4x2 - 12 = 4x2 - 122. (4x2 - 12) - (4x2 - 12) = 4x2 - 12 - 4x2 + 12 = 0(remainder)
3 - 3x + x2 - x3 = (1 - x)(x2 + 3)
x3 + x2 - 3x - 3 x(x2 + x - 3) - 3
3a(3x - 2y)(3x - 2y)(3x - 2y) or 3a times (3x - 2y) to the third power
(a) y = -3x + 1
If you mean ((-2) x (-6)) - (3 x (-21)) then it equals 75. Hope this helps!