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Coefficients evaluated/shown in an equation

pyoyoon
4-Participant

Coefficients evaluated/shown in an equation

Hi,

I am looking for a solution to my question, "can the coefficients be evaluated/shown as numbers in an equation?" 

 

example)

 

a:= 3     b:=3   c:=7

 

2a (x^2) + 3b (x) - (a+b+c) = 0  

 

can the obove be shown as:  6(x^2) + 9x - 13 = 0 

4 REPLIES 4

only partially as far as I can see

the symbolic will give the answer you are looking for but cannot have the =0

LucMeekes
23-Emerald III
(To:pyoyoon)

You mean like this:

LucMeekes_0-1583745587041.png

?

What version of Mathcad or Prime are you using?

 

Luc

pyoyoon
4-Participant
(To:LucMeekes)

Thank you!  It was perfectly working for my purpose!

 

Actually, my equation is a bit more complex.

 

pyoyoon_0-1583746198803.png

 

Your suggestion perfectly worked!

When I tried to solve the original without using EQ(), my MathCad 14 just returned the red-colored original.

LucMeekes
23-Emerald III
(To:pyoyoon)

You can also do it the other way around: First solve symbolically, then plug in the numbers. Like this:

LucMeekes_0-1583748057418.png

Success!
Luc

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