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CBSE Class 8 Maths Worksheet
Algebraic Expressions And Identities - What is an identity?
Simplify: (7m – 8n)2 + (7m + 8n)2
Use a suitable identity to get the product: (h + 3) (h + 3)
Simplify: (2h + 5)2 – (2h – 5)2
Simplify: (4m + 5n)2 + (5m + 4n)2
Use a suitable identity to get the product: (2y + 5) (2y + 5)
Show that: (9p – 5q)2 + 180pq = (9p + 5q)2
Show that: (3h + 7)2 – 84h = (3h – 7)2
Use a suitable identity to get the product: (– a + c) (– a + c)
Show that: (4pq + 3q)2 – (4pq – 3q)2 = 48pq2
Use a suitable identity to get the product: (7a – 9b) (7a – 9b)
Use a suitable identity to get the product: (2a – 7) (2a – 7)
Show that: (a – b) (a + b) + (b – c) (b + c) + (c – a) (c + a) = 0
Simplify: (2.5p – 1.5q)2 – (1.5p – 2.5q)2
Use a suitable identity to get the product: (1.1m – 0.4) (1.1m + 0.4)
CBSE Class 8 Maths Worksheet
Algebraic Expressions And Identities - What is an identity?
Answers
98m2 + 128n2
h2 + 6h + 9
40h
41m2 + 80mn + 41n2
4y2 + 20y + 25
To be proved
To be proved
a2 – 2ac + c 2
To be proved
49a2 – 126ab + 81b2
4a2 – 28a + 49
To be proved
4p2 – 4q2
1.21m2 – 0.16
