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Question
Find the product:
(x + 1) (x + 5)
Sum
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Solution
Given: (x + 1) (x + 5)
Step-wise calculation:
Use the distributive property also called FOIL for binomials:
(x + 1)(x + 5) = x × x + x × 5 + 1 × x + 1 × 5
Calculate each term:
x × x = x2
x × 5 = 5x
1 × x = x
1 × 5 = 5
Add all the terms together:
x2 + 5x + x + 5 = x2 + 6x + 5
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