3 years ago

HELP PLEASE 80 POINTS!

Mathematics

2 answers:

ollegr [7]3 years ago

8 0

Answer:

Step-by-step explanation:

sum of roots=-b/a=-5/2=-2.5

Ivanshal [37]3 years ago

5 0

Answer:

The answer is -2.5

Step-by-step explanation:

$2x^{2} +6x-x-3=0\\\\2x(x+3)-(x+3)=0\\\\(x+3)(2x-1)=0\\\\x=-3,\frac{1}{2}$

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