Pha7ntaWhoLtiatelly Pha7ntaWhoLtiatelly
  • 12-04-2017
  • Mathematics
contestada

*dont care much for the answer as much as the work*
solve x^2-8x-48=0

Respuesta :

apologiabiology
apologiabiology apologiabiology
  • 12-04-2017
in form
ax²+bx+c=0
when a=1

fine what 2 numbers multiply to get c and add to get b

so

x²-8x-48=0
what 2 numbres multiply to get -48 and add to get -8
-12 and 4
(x-12)(x+4)=0
set equal to zero each factor

x-12=0
x=12

x+4=0
x=-4

x=-4 or 12
Answer Link

Otras preguntas

John is painting parallel lines in the parking lot to create parking spaces. The measure of angle A is 60°. What is the measure of angle B?
The FDIC insures all bank accounts up to: $25,000 $50,000 $250,000 $1,000,000
n Animal Farm, Napoleon taking the litter of puppies away from their mother to raise them himself is an example of what literary device? exposition foreshadowi
Boy Scouts hiking in the mountains divide into two groups to hike around Lake Sahara. They leave the same place at 10 a.m., and one group of younger boys hikes
what Are some examples of options you can use for bullets? Check all that apply
Does the rules committee influence the outcome of a bill more than its sponsor
Find the value of x. A. 30 B. 33.3 C. 75 D. 83.3
What is the daughter nucleus (nuclide) produced when 227Ac undergoes beta decay by emitting an electron?
2350 in standard form
what is the meter pattern in these lines from "On Imagination" by Phyllis Wheatley? a. trochaic tetrameter b. iambic pentameter