Find the discriminant and the number of real roots for this equation.

x^2+2x+8=0

A. 32; two real roots

B. - 28; one real root

C. 32; one real root

D. - 28; no real roots

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Sarah solved a quadratic equation. Her work is shown below, with Step 1 missing. What could Sarah have written as the result from Step 1? 2 (x + 1) 2 + 6 = 134 Step 1 (x+1) 2 - 64 Step 2 2+1 = 18 Step 3 x = - 9 or x = 7 Step 4 Khan academy quiz

Ecessary. Bamples 3. What number is 15% of 60?