What is the factorized form of the expression: x² + 5x + 4?
- (x + 4)(x + 1)
- (x + 3)(x + 2)
- (x + 5)(x - 1)
- None of these
Explanation
To factorize the expression x² + 5x + 4, find two numbers that multiply to 4 and add up to 5.Step 1: Find the numbers
The numbers are 4 and 1, since 4 * 1 = 4 and 4 + 1 = 5.
Step 2: Factorize the expression
x² + 5x + 4 = (x + 4)(x + 1)
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- (4,6)
- (2,4)
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- None of these
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- x = 1,6
- x = 2,3
- x = -2,-3
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- 5
- 6
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