kody69372
kody69372 kody69372
  • 04-04-2020
  • Mathematics
contestada

Solve for x. Write both solutions, separated by a
comma.
5x^2 + 2x -- 7 = 0

Respuesta :

Officialalehpeter
Officialalehpeter Officialalehpeter
  • 04-04-2020

Answer: 1 or -7/5

Step-by-step explanation:

5x2+2x-7=0

Factorise

Factors of -35 that will give +2 is +7&-5

5x2+7x-5x-7=0

X(5x+7)-1(5x+7)=0

(X-1)(5x+7)=0

X-1=0

X=1

5x+7=0

5x= -7

X= -7/5

X= 1 or-7/5

Answer Link

Otras preguntas

water in a pan over a radiator evaporates much faster than a water pan in a table ???? i need help ppl
What is %15 of $35.15 What is %15 of $27.00
Use trig to solve for x show work
which is more acidic pH2, pH4 or pH6?
Why did populations soar between 1800 and 1900?
The decline in medieval trade was caused by
Write an equation for a non-vertical line that contains the point ( 2,-4 )
What is %15 of $35.15 What is %15 of $27.00
The discovery of gold in Transvaal contributed to the start of _____?the Anglo-Boer WarWorld War IIWorld War Ithe Peloponnesian War
What is the slope of (2,3) , (6,7)