for every quadratic equation in standard form:
a is the coefficient of the x^2 term
b is the coefficient of the x term
c is the constant (the number not being multiplied to x)
remember to include the negative sign in front if applicable
Vocaloid:
coefficient = the number multiplied to a variable
zarkam21:
so x^2
Vocaloid:
x^2 = 1 * x^2
making the coefficient (the number being multiplied to x^2) equal to...?
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zarkam21:
1
Vocaloid:
good, so a = 1
apply the same logic to find b and c
zarkam21:
-6
Vocaloid:
b is the number being multiplied to x, which is...?
zarkam21:
-4
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zarkam21:
and then for c is it 1
Vocaloid:
good, so a = 1 b = -4, c = 1
plug these into the quadratic equation
zarkam21:
1-4+1?
Vocaloid:
|dw:1515008907976:dw|
Vocaloid:
**it says - 4ac at the top
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zarkam21:
4i/2
Vocaloid:
it shouldn't be imaginary, check your signs carefully
zarkam21:
4/2
Vocaloid:
|dw:1515009019369:dw|
Vocaloid:
^ simplify this
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zarkam21:
4+2isqrt5
Vocaloid:
it should not have i in the final answer, check your arithmetic