for u exclusive CLASS 7 EX 12.1 ALGEBRAIC EXP.pptx

The crux of algebra lies in its fundamental operations, namely addition, subtraction, multiplication, and division. Dedicate a section of your presentation to elucidate these operations, employing clear and concise explanations accompanied by illustrative examples. Emphasize the importance of maintaining the integrity of equations through balanced operations and showcase the relevance of these operations in real-world scenarios.

1. CHAPTER 12

2. QUESTION 1

3. QUESTION 1

4. QUESTION 1

5. QUESTION 2(i)

6. QUESTION 2(i)

7. QUESTION 2(ii)

8. QUESTION2(ii)

9. QUESTION 3

10. QUESTION 3

11. QUESTION 4

12. QUESTION 4

13. QUESTION 5

14. QUESTION 5

15. QUESTION 6

16. QUESTION 7

17. HOME ASSIGNMENT EXERCISE 12.1 Q3(vi),(ix),Q4(a)(vii),

18. QUESTION 5

Classify into monomials, binomials and trinomials.

(i) 4 ルー フ z It has two terms it is binomial
(ii) y? It has only one term it is monomial
(iii) x+ y — xy It has three terms it is trinomial.
(iv) 100 It has only one term it is monomial
(v)ab-a-b Ithas three terms it is trinomial
(vi) 5 一 3t It has two terms it is binomial
(vii) 4p?q — 4pq? It has two terms it is binomial.

(viii) 7mn It has only one term. it is monomial

19. QUESTION 5

(ix) 2-3z+8 Ithasthree terms _ itis trinomial
(x)a24+b2 It hastwoterms _ itis binomial
(xi) z2+z It has two terms it is binomial

(xii) 1+x+x? hasthree terms _ it is binomial

20. QUESTION 6

State whether a given pair of terms is of like or unlike terms.

14100 (v) 4m?p, Amp?

“They are like terms They are unlike terms.
Us, (vi) 12xz, 1227?

: They are like terms. +. They are unlike terms.
(iii) -29x, -29y

+. They are unlike terms.

(iv) 14xy, 42yx

+. They are like terms

21. QUESTION 7
Identify like terms in the following:
(a) — xy2, — 4yx?, 8x2, 2xy?, 7y,
— 11x?, — 100x, — 11yx, 20x?y,

ー 6x’, y, 2xy, 3x

So like terms are
(y, 2xy’),
(-4yx? , 20x’y),
(8x?, -11x?, 6x?),
(y, y},

(-100x, 3x)

(-11yx, 2xy)

(b) 10pq, 7p, 8q, — p*q?,— 7qp,
ー 100g, — 23, 1292p2 一 5p2 41,
2405p, 78qp, 13p?q, gp2 701p?

So like terms are
(10pq, 7qp, 7809),
(7p, 2405p),

(8q, 100q),

(-p? q?, 12q? p?),
(23, 41),

(Sp? , 7201p"),

(13p?q, qp?)

22. HOME ASSIGNMENT

EXERCISE 12.1 Q3(vi),(ix),Q4(a)
(vii),