evank1
evank1
12-03-2018
Mathematics
contestada
x^2 + 18x + 50 = 9
Solve by completing the square
Respuesta :
tynollette
tynollette
12-03-2018
step 1: both sides subtract 50: x²+18x=-41
step 2: both sides add (1/2 of 18)², which is 81: x²+18x+81=-41+81
step 3: make the square: (x+9)²=40
step 4: square root both sides: x+9=√40 or x+9=-√40
simplify: x=-9+2√10 or x=-9-2√10
Answer Link
VER TODAS LAS RESPUESTAS ( 89+ )
Otras preguntas
Explain the role of the GCF in factoring a polynomial. Where is the GCF placed after factoring the GCF? How do you verify factoring is correct?
) How many oxygen molecules (o2) are required each time a molecule of glucose (c6h12o6) is completely oxidized to carbon dioxide and water via aerobic respirati
What were the strategies used by the hoover administration?
Psalms that review the past are known as what kind of Psalms? 1.poetical 2.divine 3.prophetical 4.historical
Using the word bank provided, write the term that best matches each definition below. Words may be used more than once in the test. Stonehenge architecturally f
During revision, you should?
___ is the most frequently reported bacterial sexually transmitted disease in the united states a. chlamydia b. syphilis c. herpes d. gonorrhea
How can acid rain affect biodiversity in a pond?
In "my last duchess" by robert browning, why did the poet use run-on lines? a. to show that the duke prevents the agent from speaking. b. to give the duke's wo
NEED HELP NOW ETHANHUNT 25 POINTS WILL MARK BRAINLIEST!! For the independent reading all you have to do is pick a grade six book that you have read plz help! 3
