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andy1381
27.11.2019 •
Mathematics
Math 14pts!
nick is solving the equation 3x^2 = 20 − 7x with the quadratic formula.
which values could he use for a, b, and c?
a. a = 3, b = -7, c = 20
b. a = 3, b = -20, c = 7
c. a = 3, b = 7, c = -20
d. a = 3, b = 20, c = -7
i think it's either a or d but i'm not 100% sure so i could be wrong
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Ответ:
Ответ:
Hope this helps:)
Ответ:
-2x+8=x-1
add 2x to both sides
8=3x-1
add 1
9=3x
divide 3
3=x
sub
y=x-1
y=3-1
y=2
(x,y)
(3,2)