kiya36 kiya36
  • 04-05-2017
  • Mathematics
contestada

Quadratic formula to solve

Quadratic formula to solve class=

Respuesta :

ghanami
ghanami ghanami
  • 04-05-2017
hello :
7c²+8c+1 = 0
the discriminant Δ = b²-4ac      a = 7     b= 8     c = 1
Δ = 8²-4(7)(1)  = 64-28 = 36 = 6²
x1 = (-8-6)/14     x2 = 
 (-8+6)/14
x1 =-1   x2 = -1/7
Answer Link

Otras preguntas

find the sum. write each mixed number in simplest form 4 7/8 + 5 1/4
The inner and outer Radii of a cylindrical pipe are 5 cm and 4 cm respectively. find the area of cross section of the pipe.
What all the multiples of 81?
Factor the expression. If the expression cannot be factored, say so.
find the sum. write each mixed number in simplest form 4 7/8 + 5 1/4
What were the contributions of the Harappan civilization?
What all the multiples of 81?
A blue rope is 3 times the length as a red rope. A green rope is 5 times as log as the blue rope of the total length of all 3 ropes equals 508.25m what is the l
find the sum. write each mixed number in simplest form 4 7/8 + 5 1/4
What's 5 divided by x squared explain