Can someone check my work
I have to find the value of x^3 + 2x^2 - 3
My answer: 27 + 18 - 3
Your question the way it stands makes no sense, but it looks like
you are finding the value when x = 3
so the result is correct so far,
you just have to simplify it.
So my final answer would be: 42?
To find the value of x^3 + 2x^2 - 3, you need to substitute a value for x and then evaluate the expression. It seems like you substituted x = 3 into the expression. Let's check if your answer is correct by substituting x = 3 into the expression and simplifying.
Substituting x = 3, we have:
(3)^3 + 2(3)^2 - 3
Simplifying further:
27 + 2(9) - 3
27 + 18 - 3
Your answer, 27 + 18 - 3, simplifies to 42. Therefore, when x = 3, the value of x^3 + 2x^2 - 3 is 42.
If you want someone to check your work for a different value of x, please provide the value so that we can assist you accordingly.