That's going to depend on what 'X' is.
Whatever 'x' happens to be, x2+x will be the same as 'x' multiplied by (one more than 'x').
There are an infinite number of possibilities.
Here are a few of them:
If x=1, then it's 2
If x=2, then it's 6
If x=5, then it's 30
If x=100, then it's 10,100
If x=1.5, then it's 3.75
If x=742, then it's 551,306
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- If 3X - 1 = 11, what is the value of X^2 + X?
The factors of x2 are x and x x times x plus 1 = x2 + x
x4 - 1.We can not "solve" this as we have not been told the value of x. However, we can simplify this expression:We have an x and a minus x here which will cancel out. Likewise the x2 and x3 will cancel out with the -x2 and -x3 respectively. This therefore leaves us with just x4 - 1.
2x3 + x2 + 15 This is a 3rd order polynomial in 'x'. It's numerical value kinda depends on the value of 'x'.
You need to know the value of x