Answer:
(x + 12)(x + 4)
Step-by-step explanation:
Find factors of x and 48 that, when combined, will give you 16x.
x² + 16x + 48
x 12
x 4
(x + 12)(x + 4) is your answer.
Check: Use the FOIL method (First, Outside, Inside, Last)
(x)(x) = x²
(x)(4) = 4x
(12)(x) = 12x
(12)(4) = 48
Combine like terms: x² + 4x + 12x + 48
x² + (4x + 12x) + 48
x² + 16x + 48 (True√)
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