Simplify (x+1)(x2+x-1) that should be x squared. the superscript didn't carry over.
(x + 1)(x^2 + x - 1)
=x (x^2 + x - 1) +1 (x^2 + x - 1)
distributive property of multipication
= x^3 + x^2 - x + x^2 + x - 1
= x^3 + 2 x^2 - 1
Thanks!
To simplify the expression (x+1)(x^2+x-1), you will use the distributive property of multiplication. This property states that when you multiply a sum by a number, you can multiply each term in the sum individually and then add them up.
Let's apply this property to the given expression:
(x+1)(x^2+x-1)
= x(x^2+x-1) + 1(x^2+x-1)
= x^3 + x^2 - x + x^2 + x - 1
Now, combine like terms:
= x^3 + 2x^2 + 0x - 1
= x^3 + 2x^2 - 1
Thus, the simplified expression is x^3 + 2x^2 - 1.