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Elina [12.6K]
3 years ago
5

I NEED HELP !!!!!!!!!

Mathematics
1 answer:
marissa [1.9K]3 years ago
7 0

Answer:

b

d

e

Step-by-step explanation:

the standar form is

ax^{2} +bx+c=0

so it's

0.5x^{2} -3.2x+5.8=0\\\\-x^2-3x+20=0\\\\\frac{1}{2}x^2+4x-3=0\\\\

only that

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