this ppt is specially made for 8th class student. it will really helpful in better understanding of maths expressions and identity. uploaded by ruhi

3. • A NUMBER OR A COMBINATION OF NUMBERS
CONNECTED BY THE SYMBOLS OF OPERATION
+,-,×,? IS CALLED AN ALGEBRIC EXPRESSION.
• EQUATIONS ARE FORMED FROM VARIABLES
AND CONSTANT.

4. • VARIOUS PARTS OF AN ALGEBRIC EXPRESSIONS
WHICH ARE SEPERATED BY THE SIGNS + OR – ARE
CALLED THE “TERMS” OF THE EXPRESSIONS.
• EACH TERM IS AN ALGEBRIC EXPRESSION IS A
PRODUCT OF ONE OR MORE NUMBER KNOW
THE “FACTORS” OF THE TERM.
• FOR EXAMPLE FACTORS OF 24 :

5. LIKE AND UNLIKE TERMS
• THE TERMS HAVING THE SAME LITERAL
FACTORS ARE CALLED LIKE TERMS, OTHERISE
THEY ARE CALLED UNLIKE TERMS.

6. • IN A TERM OF AN ALGEBRIC EXPRESSION ANY
OF THE FACTORS WITH THE SIGN OF THE
TERM IS CALLED THE COEFFICIENT OF THE
PRODUCT OF OTHER FACTORS.

7. • EXPRESSION THAT CONTAINS
ONLY ONE TERM IS CALLED
MONOMIAL.
• EXPRESSION THAT CONTAINS
TWO TERMS IS CALLED
BINOMIAL.
• EXPRESSION CONTAINING
THREE TERMS IS CALLED TRINOMIALS.
• EXPRESSION CONTAINING ONE
OR MORE TERMS CALL POLYNOMIALS.

8. ADDITION OF ALGEBRIC EXPRESSION

10. MULTIPLICATION OF TWO
MONOMIALS

12. MULTIPLICATION OF A MONOMIAL
AND A TRINOMIAL

13. MULTIPLICATION OF TWO BINOMIALS

16. • AN IDENTITY IS AN EQUALITY WHICH
IS TRUE FOR ALL VALUES OF THE
VARIABLES

18. IDENTITY 1

19. IDENTITY 2

20. IDENTITY 3