Question

multiply binomials
score: 1/2 penalty: 0.25 off
question
express as a trinomial.
$(x + 5)(x - 3)$
answer attempt 1 out of 2

Explanation:

Step1: Apply FOIL method

First terms: $x \cdot x = x^2$
Outer terms: $x \cdot (-3) = -3x$
Inner terms: $5 \cdot x = 5x$
Last terms: $5 \cdot (-3) = -15$

Step2: Combine like terms

$x^2 + (-3x + 5x) - 15 = x^2 + 2x - 15$

Answer:

$x^2 + 2x - 15$