Triangle ABC is reflected across the line y = x. What are the coordinates of the vertex B' of the resulting triangle A'B'C'?
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Answer:
<em>The missing number in Sari's factorization is </em><em>3</em><em>.</em>
Step-by-step explanation:
The given polynomial is,
From quadratic equations, applying middle term factorization,
Comparing this to the given expression, the missing number in Sari's factorization is 3.