Begginer Question: Replacing variables with number.

03172017, 10:22 PM
(This post was last modified: 03172017 11:38 PM by Chris..)
Post: #1




Begginer Question: Replacing variables with number.
If i enter Simplify((X^27x)(8x^3))
Calculator returns "x^5+7x^4+8x^256x" How would I tel the calculator to replace all values of x with a number for example 1 I tried Solve(x^5+7x^4+8x^256x,x=1) And it returned the wrong answer. 

03182017, 12:00 AM
Post: #2




RE: Begginer Question: Replacing variables with number.
You can use subst: subst(x^5+7*x^4+8*x^256*x,x=1)
or define a function: f(x):=(x^27*x)*(8x^3) and then enter f(1) 

03182017, 04:04 AM
Post: #3




RE: Begginer Question: Replacing variables with number.
Another way: Use the WHERE symbol (looks like ""; it's the 3rd item in the template box). Your example would be x^5+7*x^4+8*x^256*xx=1.
<0ΙΈ0> Joe 

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