Identify Variables: Identify a, b, and c in the quadratic expression j2+6j+5. The quadratic expression is in the form j2+bj+c, where a=1 (the coefficient of j2), b=6 (the coefficient of j), and c=5 (the constant term).
Find Multiplying Numbers: Find two numbers that multiply to c(5) and add up to b(6). We need to find two numbers that multiply together to give 5 and when added together give 6. The numbers 1 and 5 satisfy these conditions because 1×5=5 and 1+5=6.
Write Factored Form: Write the factored form using the two numbers found in Step 2.The factored form of the quadratic expression is (j+1)(j+5), because when we apply the distributive property (FOIL), we get back the original expression: j2+5j+1j+5, which simplifies to j2+6j+5.
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