Answer:
(x+7/2)=1/4
Step-by-step explanation:
I got it on Khan Academy, trust me. It's right. I got it wrong because of the other answer here, so your welcome, but this is the correct answer, Khan Academy people.
289/4
x² + 17x + 12 = 0
x² + 17x = -12
Take half of the second coefficient, square it, then add the result to both sides.
(17/2)² = 289/4
x² + 17x + 289/4 = -12 + 289/4
(x + 17/2)² = 241/4
12324564876475357326546469375628242564967765976596
710 times 5 duh
Look at the hundreds values. So look at 250. 250 rounded to the nearest hundred would be 300. So your final answer would be 8300.