Are you looking for DAV Maths Solutions for class 8 then you are in right place, we have discussed the solution of the Secondary Mathematics book which is followed in all DAV School. Solutions are given below with proper Explanation please bookmark our website for further updates!! All the Best !!
Unit 7 Brain Teaser | Algebraic Identities | Class-8 DAV Secondary Mathematics
Q1. Tick the correct option.
(i) The factor of (1-6z+9z^2) are
(a) (1+3z)(1-3z) (b) (z+3)^2 (c) (3z-1)^2 (d) (z-3)^3
(ii) Which of the following is an algebraic identity?
(iii) Factorized form of y^2 + 3y + y + 3 is
(iv) Factorized form of p^2 – 17p – 38 is
(v) A side of the square with area (4x^2 + 12x + 9) square units is
Q1B. Answer the following questions.
Q2. Find the following products using a suitable identity:
Q3. Express the following as square of a binomial and evaluate for the given values:
Q4. Simplify the following:
Q5. Evaluate the following by using suitable identity:
Q6. Evaluate x if
Q7. Factorise the following expressions:
Q8. If x+1/x = 8, find the value of x2+ 1/x2.
Q9. If a-1/a = 5, find the value of a2+1/a2.
Q10. Find the value of (a+1/a).
Q11. Find the value of (x-1/x).
Q12. Simplify
Q13. If 3x-4y = 10 and xy = -1, find the value of 9x^2 + 16y^2.
Q14. If 5x – 2y = 7 and xy = 2, find the value of (5x + 2y)^2.
Q15. Find the value of (a-1/a).
this is good but the answers are way too complicated
Yaaa broo
Ye chapter easy hai par complicated🙄🙄🙄🙄🙄
Pdf required