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x3 + 3x + 5x + 15
That's a third-degree expression in 'x'.
It can be cleaned up a little bit, by adding the 3x and the 5x. Doing that
doesn't change anything; it only makes the expression neater:
x3 + 8x + 15
Now it's a third-degree trinomial in 'x'. If anybody wants to know what number
the expression is equal to, they'll have to tell you what number 'x' is first. The
value of the whole expression depends on the value of 'x', and every time 'x'
changes, the value of the expression changes.
Notice that it's not an equation, it doesn't ask any question, and it has no
solution or 'answer'. It's just a number, the value of which can be anything.
Wiki User
∙ 13y ago
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5x plus 4 - 3x plus 5 plus 2x - 9?
5x + 4 - 3x + 5 + 2x - 9 = 4x
6-3x equals 5x-10x plus 10?
6-3x = 5x-10x+10 6-3x = -5x+10 -3x+5x = 10-6 2x = 4 x = 2
What is 3x plus 2a plus 5x plus 4a?
58
What is 3x squared plus 5x plus 2?
3x2 + 5x + 2 is a quadratic expression that can be factored as follows: 3x2 + 5x + 2 = 3x2 + 3x + 2x + 2 = 3x(x + 1) + 2(x + 1) = (3x + 2)(x + 1)
15x2 plus 58x plus 48?
15x2 + 58x + 48= 15x2 + 18x + 40x + 48= 3x(5x + 6) + 8(5x + 6)= (3x + 8)(5x + 6)
What is the value of x when 3x - 5 plus 3x equals 1x plus 15?
3x - 5 + 3x = 1x + 15 3x + 3x -1x = 15 + 5 5x = 20 5x/5 = 20/5 x = 4
What is 5x plus 9 equals 3x 15?
if you meant 5x+9=3*15 then, 5x = 36, x = 7.2 if you meant 5x+9=3x+15 then, 2x = 6, x = 3
What is 3x plus 5 plus 5x plus 15?
i don't know, why are you asking me? :)
How do you solve the system of equation 5x plus y equals -7 amd 3x plus y equals 15?
5x+y=-7 3x+y=15 8=D
What is 5x plus 6 equals 2x plus 15?
5X + 6 = 2X + 15 -2X -2X 3X + 6 = 15 -6 -6 3X = 15 ---- ----- 3 3 x = 5 im so smart.
X plus 15 plus 3x plus 5 equals 5x-7?
x = 27
How do you factor 15x2 plus 16x - 15?
(5x - 3)(3x + 5)
5x equals 3x plus 1000 plus 0?
5x = 3x+1000+0 5x-3x = 1000 2x = 1000 x = 500
5x plus 6-3x plus 8?
5x+(6-3x)+8=5x+6-3x+8=2x+14 2x + 14
What is 4xx plus 3x plus 6 plus 5x plus 3x plus 6 simplfied?
4x2+3x+6+5x+3x+6 = 4x2+11x+12 when simplified
How do you solve it 5x plus 8x plus 3x - 2x?
5x+8x+3x-2x = 14x
What is 3x minus 5x plus x?
3x - 5x + x = -x
