Identify b and c: Identify b and c in the quadratic expression d2+18d+17. Compare d2+18d+17 with the standard quadratic form x2+bx+c. Here, b=18 and c=17.
Find product and sum: Find two numbers whose product is c(17) and whose sum is b(18). We need to find two numbers that multiply to 17 and add up to 18. Since 17 is a prime number, the only factors of 17 are 1 and 17 itself. (17)0 and (17)1, which matches our requirements. Two numbers: 1, 17.
Write factored form: Write the factored form using the two numbers found in Step 2.The factored form of the quadratic expression is (d+1)(d+17).
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