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

Each year Earth moves once around —
the difference of 17 and 5 times a number.
4 times what number equals 204
Can some one help me with this Please help
what times itself equals 30
accurate estimation of 75-33
What is the difference between evidence and inference?
What do all viruses need to reproduce?
The digit in the tens place of a two digit number is three times that in the units place. If the digits are reversed the new number will be 36 less than the ori
what number is smaller than 19 but more than 4 factors