LukeNuno LukeNuno

03-12-2014
Mathematics

contestada

Solve for x:

x2 + 8x = -1

Respuesta :

konrad509 konrad509

03-12-2014

[tex]x^2+8x=-1\\ x^2+8x+16-16=-1\\ (x+4)^2=15\\ x+4=\sqrt{15} \vee x+4=-\sqrt{15}\\ x=-4+\sqrt{15} \vee x=-4-\sqrt{15}[/tex]

Answer Link

Otras preguntas

A hospital’s financial reimbursement payor mix indicates 35% of the patients have Medicare and 15% have Medicaid. Of those who have Medicare, there is a 10% cha

139. The part of seed that stores food is called the answer

Find each quotient. 1) 6 ÷ -12) -4 ÷ - 1 3) 2 ÷ - 1 4) 20 ÷ -5 5). -8 ÷ -2Need now please

A store purchased a DVD for $12.00 and sold it to a customer for 50% more than the purchase price. What was the customer's total cost for the DVD?

50 POINTS PLSS IM TIMED The next question refers to Shedding Light on a Dark Day, by Robin Meriwether. The paragraphs have been numbered to help you identify th

There are three main things a person can do to maintain a healthy weight. The first is be aware of what is eaten. It is important to keep eating patterns consis

What number must each side of the equation 2/3x = 16 bw multiplied by to produce the equivalent equation x = 24?

This season, the probability that the Yankees will win a game is 0.5 and the probability that the Yankees will score 5 or more runs in a game is 0.54. The proba

geometry question pls help

Read and look at this graphic from Citizenship. What is the author's most likely purpose for including the man "shaping" an issue? to analyze a topic for reade