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CBSE Class 8 Maths Worksheet

Algebraic Expressions And Identities - Standard identities

1.

Use the identity (h + a) (h + b) = h2 + (a + b) h + ab to find product: (2h + 5y) (2h + 3y)

2.

Use the identity (h + a) (h + b) = h2 + (a + b) h + ab to find product: 95 × 103

3.

Use the identity (h + a) (h + b) = h2 + (a + b) h + ab to find product: (4h + 5) (4h – 1)

4.
Use the identity (h + a) (h + b) = h2 + (a + b) h + ab to find product: (4h + 5) (4h – 1)
5.
Use the identity (h + a) (h + b) = h2 + (a + b) h + ab to find product: (hyz – 4) (hyz – 2)
6.
Use the identity (h + a) (h + b) = h2 + (a + b) h + ab to find product: (2a2 + 9) (2a2 + 5)
7.

Use the identity (h + a) (h + b) = h2 + (a + b) h + ab to find product: (hyz – 4) (hyz – 2)

8.

Use the identity (h + a) (h + b) = h2 + (a + b) h + ab to find product: (h + 3) (h + 7)

9.

Use the identity (h + a) (h + b) = h2 + (a + b) h + ab to find product: (4h + 5) (4h + 1)

10.
Use the identity (h + a) (h + b) = h2 + (a + b) h + ab to find product: 501 × 502
11.

Use the identity (h + a) (h + b) = h2 + (a + b) h + ab to find product: (2a2 + 9) (2a2 + 5)

12.

Use the identity (h + a) (h + b) = h2 + (a + b) h + ab to find product: (4h – 5) (4h – 1)

13.

Use the identity (h + a) (h + b) = h2 + (a + b) h + ab to find product: 501 × 502

14.
Use the identity (h + a) (h + b) = h2 + (a + b) h + ab to find product: (h + 3) (h + 7)
15.
Use the identity (h + a) (h + b) = h2 + (a + b) h + ab to find product: 95 × 103
16.
Use the identity (h + a) (h + b) = h2 + (a + b) h + ab to find product: (4h + 5) (4h + 1)
17.
Use the identity (h + a) (h + b) = h2 + (a + b) h + ab to find product: (4h – 5) (4h – 1)
18.
Use the identity (h + a) (h + b) = h2 + (a + b) h + ab to find product: (2h + 5y) (2h + 3y)

CBSE Class 8 Maths Worksheet

Algebraic Expressions And Identities - Standard identities

Answers

1.

4h2 + 16hy + 15y2

2.

9785

3.

16h2 + 16h – 5

4.
16h 2 + 16h – 5
5.
h 2 y 2 z 2 – 6hyz + 8
6.
4a 4 + 28a 2 + 45
7.

h2 y2 z2 – 6hyz + 8

8.

h2 + 10h + 21

9.

16h2 + 24h + 5

10.
251502
11.

4a4 + 28a2 + 45

12.

16h2 – 24h + 5

13.

251502

14.
h 2 + 10h + 21
15.
9785
16.
16h 2 + 24h + 5
17.
16h 2 – 24h + 5
18.
4h 2 + 16hy + 15y 2

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