Question

Q1 Which of the following expressions are polynomials or not .

State reasons for your answer

i) 3x2

-4x+15

ii) x

12 +y3+t50

iii) y

2+2√3

iv) x- 4/x

v) 4x3 – x

2

- 3x +7

vi) 2x3 – 3x2 + √x -1

vii) x

4 – x

⅔ + x - 1

viii) 2x2

-3x +4/x +2

ix) 3√x + √2x

Q2 Write the degrees of each of the following expressions

i) 7x3

+4x2


-3x+12

ii) 12-x+2x3

iii) 7

iv) 0

v) Cubic polynomial

vi) 5y-√2

Q3 Identify as constant, linear, quadratic and cubic polynomial
i) f(x) = 0
ii) g(x) = 2x3

-7x+4

iii) h(x) = -3x+1/2

iv) p(x) = 2x2

–x +4

v) q(x) = 4x+3

vi) r(x) = 3x3

- 4x2 +5x - 7

Q4 If x=2, is a root of the polynomial f(x) = 2x2

- 3x + 7a, find the value

of a?

Q5 If x= - 1/2 is a zero of the polynomial p(x) = 8x3

- ax2

– x + 2, find the

value of a?

Q6 Show that -1, 1, and 3 are all zeroes of the polynomial x3

- 3x2

- x+3

Q7 Find the zeroes of the polynomial

i) (x+1)(2x+3)

ii) ax+b, x≠0

iii) 9x2

-4

iv) (x-1)(3x+2)

v) 3-6x

Q8 Write the coefficient of y in the expansion of (5-y)2

Q9 If p(x) = x+3, then find p(x) + p(-x)

Q10 Find the value of each of the following polynomial at the indicated value of variable

i) p(y) = 5y2

- 3y+7 ; at y = 1,-1

ii) q(x) = 3x3

-4x+√8 ; at x=2

iii) p(t) = 4t4 + 5t3- t

2 + 8; at t=b

The one who will answer all correct step by step will be marked as brainliest​

Answer 1

Answer:

1. it is a polynomial because it has power 2

2.it is not a polynomial because it does not have power 2

3. it is not a polynomial because it has √3 in the equation

4.it is a polynomial because it has power 2

5. it is not a polynomial because it has power 3

6.

Answer 2

Answer:

correct answer 8s majfjfuufu