Identify a, b, c: Identify a, b, and c in the quadratic expression x2+20x+19.The quadratic expression is in the form ax2+bx+c, where a=1, b=20, and b0.
Find Factors and Sum: Find two numbers that multiply to c (19) and add up to b (20).We need to find two numbers m and n such that m×n=19 and m+n=20.Since 19 is a prime number, the only factors of 19 are 190 and 19 itself.192 and 193, so the numbers are 190 and 19.
Write Factored Form: Write the factored form using the numbers found in Step 2.The factored form of the quadratic expression is (x+m)(x+n), where m=1 and n=19.Therefore, the factored form is (x+1)(x+19).
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