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Find the sum of the solutions of 2x^2+7x-4=0

 Feb 9, 2021

Best Answer 

 #1
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Hello guest!

We use vietas formula for the sum of roots, this formula states

$r_1+r_2=-b/a$

in this quadratic 

$a=2$

$b=7$

$c=-4$

 

the sum of the roots is $-b/a$ so that means it is equal to 

 

$-7/2$

 Feb 9, 2021
 #1
avatar
+1
Best Answer

Hello guest!

We use vietas formula for the sum of roots, this formula states

$r_1+r_2=-b/a$

in this quadratic 

$a=2$

$b=7$

$c=-4$

 

the sum of the roots is $-b/a$ so that means it is equal to 

 

$-7/2$

Guest Feb 9, 2021

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