Diana.xL
  • Diana.xL
...
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
Diana.xL
  • Diana.xL
x^2+4x +4 = 0
Diana.xL
  • Diana.xL
@imqwerty
kittiwitti1
  • kittiwitti1
What do you want to do with this equation?

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More answers

imqwerty
  • imqwerty
1)compare this equation with\[ax^2+bx+x=0\] 2)identify a,b,c 3)apply this formula to find discriminant\[D=b^2-4ac\]
kittiwitti1
  • kittiwitti1
\[x^{2}+4x+4=0\text{ Solve for x?}\]
Diana.xL
  • Diana.xL
x^2 + 4x +4 = 0 a = 1, b = 4, c = 4 D = 4x - 4(1)(4)
Diana.xL
  • Diana.xL
would my final answer be 0?
imqwerty
  • imqwerty
wait u wanna knw discriminant or roots?
Diana.xL
  • Diana.xL
yes i do. its just like the other question u answered.
kittiwitti1
  • kittiwitti1
If you're solving for x then the quadratic formula would be of better use:\[x=\frac{-b\pm\sqrt{b^{2}-4ac}}{2a}\]
kittiwitti1
  • kittiwitti1
What do you mean by your final answer then?
imqwerty
  • imqwerty
ok yes D=0 is correct
Diana.xL
  • Diana.xL
Find the value of the discriminant for each quadratic equation below. Show all steps needed to write the answer in simplest form, including substituting the values of a, b, and c in the discriminant formula. Then use the value to determine how many real number solutions each equation has.
Diana.xL
  • Diana.xL
this is what its asking
kittiwitti1
  • kittiwitti1
Okay. Please post that next time because I got confused :p
Diana.xL
  • Diana.xL
haha ok
Diana.xL
  • Diana.xL
@imqwerty The quadratic equation will be having only one real root.?
kittiwitti1
  • kittiwitti1
I suck at discriminants though so yeah ask the great qwerty ^^
imqwerty
  • imqwerty
back
imqwerty
  • imqwerty
yes because D=0 there is only 1 real root
Diana.xL
  • Diana.xL
ok thnx!!
imqwerty
  • imqwerty
np :)
Diana.xL
  • Diana.xL
can u help with one more?
imqwerty
  • imqwerty
yea y not
Diana.xL
  • Diana.xL
Find the value of the discriminant for each quadratic equation below. Show all steps needed to write the answer in simplest form, including substituting the values of a, b, and c in the discriminant formula. Then use the value to determine how many real number solutions each equation has. 5x^2 + x = 4
imqwerty
  • imqwerty
ok do the same steps
Diana.xL
  • Diana.xL
a = 5, b = 1, c = 4 D = 1 - 4(5)(4) D = 81. is it correct?
imqwerty
  • imqwerty
back
imqwerty
  • imqwerty
1st u need to convert the equation into this form-\[ax^2+bx+c=0\]so there shuld be a 0 on the left hand side can u bring a zero out there by subtracting 4 from both sides :)
Diana.xL
  • Diana.xL
i dont understand

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