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
VER TODAS LAS RESPUESTAS ( 37+ )
Otras preguntas
An increase in hours of television viewing leads to increases in the sales of snack foods. This is an example of a _____.
In which situation would the gravitational potential energy between you and earth be greatest?
Where are Baltic-Slavic languages spoken? A. northern Europe B. eastern Europe C. western Europe D. southwestern Europe
Aileen Mavourneen is considered a round and dynamic character because she A is a fully developed character who changes as the plot unfolds. B is an overweight d
The actual separation or division of the parent cell is called _____. a cleavage furrow budding cytokinesis fragmentation
If the sum of money is divided among ‘n’ children, each child will receive $60. If another child is added to the group and the amount is distributed again each
What two concepts does H. G. Wells connect in this excerpt from The Time machine? At first, proceeding from the problems of our own age, it seemed clear as dayl
Either Mark or his students _______ on the ferry boat. 10. If you want to use the present tense, which word would best fill the blank?
When was the first gasoline-powered American automobile made?
(5x - 18) + (4x + 7) = 180 what is the value of x?
