Question

multiply binomials
score: 0/5 penalty: 1 off
question
express as a trinomial.
answer attempt 1 out of 2
$(x + 10)(3x + 8)$
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Explanation:

Step1: Apply FOIL method first terms

$x \cdot 3x = 3x^2$

Step2: Multiply outer terms

$x \cdot 8 = 8x$

Step3: Multiply inner terms

$10 \cdot 3x = 30x$

Step4: Multiply last terms

$10 \cdot 8 = 80$

Step5: Combine like terms

$3x^2 + 8x + 30x + 80 = 3x^2 + 38x + 80$

Answer:

$3x^2 + 38x + 80$