02-03-2018
Mathematics

contestada

negative 1 over 2x + 2 = −x + 7

Respuesta :

sqdancefan sqdancefan

03-03-2018

Multiply by the denominator and solve the resulting quadratic.
.. -1/(2x +2) = -x +7
.. -1 = (2x +2)(-x +7)
.. 2x^2 -12x -15 = 0
And from the quadratic formula
.. x = (12 ±√((-12)^2 -4(2)(-15)))/(2(2))
.. x = 3 ±√16.5

x ≈ -1.062019 or 7.062019

Answer Link

Otras preguntas

The ancient Greeks were polytheistic. Keeping in mind that the root word "theos" means "god," what can you infer about the prefix "poly?" A It means "spiritual"

if i was born in 1938 how old am i now?

A restaurant has 1/3 tray of baked pasta leftover after dinner. If 6 workers share the remaining baked pasta equally, what fraction of a tray will each worker g

Thomas is using this text in his research paper. His teacher insists on the MLA format. He is working on the final draft. Each of these statements describes app

Determine the volume of this prism.

Can Anxiety disorders be caused by a traumatic life event.

Jake's test scores for the first term of chemistry class were 78, 68, 73, 94, and 62. Which of the measures of central tendency would make Jake's test scores se

72 - 162 +64 4.22 - 362 +32

What does the executive branch do?

What’s a multiplication problem that equals to -5