<PRE><B>Question 146470</B>
P(x) = 5x^3-3x^2+2x+7x^2
Now P(3) just means that we need to write 3 in place of x and then solve. So, we have :

P(3) = 5 X 3^3 - 3 X 3^2 + 2 X 3 + 7 X 3 ^ 2
     = 5X27 - 3X9 + 6 + 7X9
     = 135  - 27 + 6 + 63
     = 177

Ans. P(3) = 177 and the equation is a monomial because it has only one unknown quantity which is x.

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