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3 years ago

Find the sum. 2x^2 +26x+ 156=0

Mathematics

2 answers:

kykrilka [37]3 years ago

6 0

It can not be found it is X e R

Mila [183]3 years ago

5 0

Answer:

-13

Step-by-step explanation:

2x²+26x+156=0

x²+13x+78=0

x²+13x=-78

x²+13x+169/4=-143/4

(x+13/2)²=-143/4

x+13/2=(i√143)/2 or x+13/2=-(i√143)/2

x=(i√143)/2-13/2 or x=-(i√143)/2-13/2

(i√143)/2-13/2+(-(i√143)/2)-13/2=(i√143-13-i√143-13)/2=-26/2=-13

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3 years ago

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HACTEHA [7]

Answer:

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Step-by-step explanation:

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3 years ago

I need help right away ASAP!!!Please help me please finding the missing angle

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2 years ago

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PLZ HELP QUICKLY! I don't need an explanation just the answer

Phantasy [73]

Answer:

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option D

3 0

3 years ago

Can someone help me ?

Alex Ar [27]

All you need to do is divide 2.25 by 2!

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