SOLUTION: How do I use synthetic substitution to find f(3) for f(x) = 2x^4 - 3x^2 - x + 2

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Question 6534: How do I use synthetic substitution to find f(3) for f(x) = 2x^4 - 3x^2 - x + 2
Answer by ichudov(507)   (Show Source): You can put this solution on YOUR website!
you wipe every "x" with your eraser and write in "3" instead of x.
that's literally what you should do.


Solved by pluggable solver: EXPLAIN simplification of an expression
Your Result:


YOUR ANSWER


  • Graphical form: simplifies to
  • Text form: 2*3^4-3*3^2-3+2 simplifies to 134
  • Cartoon (animation) form:
    For tutors: simplify_cartoon( 2*3^4-3*3^2-3+2 )
  • If you have a website, here's a link to this solution.

DETAILED EXPLANATION

Look at .
Replace constants in factor: highlight_red%28+3+%29,highlight_red%28+4+%29 with highlight_green%28+81+%29
It becomes .
Look at .
Replace constants in factor: highlight_red%28+3+%29,highlight_red%28+2+%29 with highlight_green%28+9+%29
It becomes .
Look at .
Added fractions or integers together
It becomes .
Look at .
Removed extra sign in front of -1
It becomes .
Look at .
Multiplied numerator integers
It becomes .
Look at .
Multiplied numerator integers
It becomes .
Look at .
Added fractions or integers together
It becomes .
Result:

Universal Simplifier and Solver


Done!
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