Question 137845
x squared + 4x + 3
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Using the AC-Method:
Think of two numbers whose product is 3 and whose sum is 4.
The numbers are 3 and 1
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Replace the 4x term with 3x+x to get:
x^2+3x+x+3
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Factor the 1st two and the last two terms separately to get:
x(x+3) + (x+3)
Factor again to get the final answer:

= (x+3)(x+1)
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Cheers,
Stan H.