Class 9 Exam  >  Class 9 Notes  >  Lab Manuals for Class 9  >  Viva Voce: Algebraic Identity (a + b)^2 = a^2 + 2ab + b^2

Viva Voce: Algebraic Identity (a + b)^2 = a^2 + 2ab + b^2 | Lab Manuals for Class 9 PDF Download

Q.1. (a + b)2 is binomial or trinomial ?

Trinomial.


Q.2. Is Viva Voce: Algebraic Identity (a + b)^2 = a^2 + 2ab + b^2 | Lab Manuals for Class 9 the zero of the polynomial 3x + 1?

Yes


Q.3. Write the product of (7x + 3) (7x + 3).

49x2 + 42x + 9


Q.4. Write Viva Voce: Algebraic Identity (a + b)^2 = a^2 + 2ab + b^2 | Lab Manuals for Class 9 in square form.

Viva Voce: Algebraic Identity (a + b)^2 = a^2 + 2ab + b^2 | Lab Manuals for Class 9


Q.5. Write the simplification of (2x + 1)2.

4x2 +4x + 1


Q.6. If f(y) = y2 – y + 1 find f(1).

f(1) = (1)2 – (1) + 1 = 1.


Q.7. What do you mean by zeroes of the polynomial?

The values of x for which the given polynomial vanishes.


Q.8. Factorize x2 + 10x + 25.

(x+5)2


Q.9. What is the coefficient of x2 in (3x + 1)2 ?

 9


Q.10. What is the degree of polynomial x2 + 4x + 2?

2

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