Question

question
express as a trinomial.
$(x + 1)(x - 2)$
answer attempt 1 out of 2

Explanation:

Step1: Apply FOIL method

Multiply first terms, outer terms, inner terms, last terms:
First: $x \times x = x^2$
Outer: $x \times (-2) = -2x$
Inner: $1 \times x = x$
Last: $1 \times (-2) = -2$
Combine these: $x^2 - 2x + x - 2$

Step2: Combine like terms

Add the linear terms: $-2x + x = -x$
Simplify the expression: $x^2 - x - 2$

Answer:

$x^2 - x - 2$