Question

which is a polynomial i.4x+9 ii.under root x+9 iii. 2/5x-7 iv. under root 7x square+1/3x + 5/9?​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

(i)   4x2 – 3x + 7

                ⇒ 4x2 – 3x + 7x°

                ∵ All the exponents of x are whole numbers.

                ∴ 4x2 – 3x + 7 is a polynomial in one variable.

         (ii)  

                ∵ All the exponents of y are whole numbers.

                ∴is a polynomial in one variable.

         

         (v)   x10 + y3 + t50

                ∵; Exponent of every variable is a whole number,

                ∴ x10 + y3 + t50 is a polynomial in x, y and t, i.e. in three variables.