Question

state the type of polynomial : √2x^2 + 7x +4√7​

Answer 1

Answer:

2x

2

+7x−4=0

⇒2x

2

+8x−x−4=0

⇒2x(x+4)−1(x+4)=0

⇒(2x−1)(x+4)=0

⇒(2x−1)=0,(x+4)=0

⇒x=

2

1

,−4

Answer 2

Answer:

(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.