Std: 9 Sub: Maths --------------------------------------------- ·

1.	Std: 9 Sub: Maths --------------------------------------------- · Write tables 12 to 30 · Use suitable identities to find the product of · (×+4)(×+10) · (×+8)(×-10) · (3×+4)(3×-5) · (3-2x)(3+2x) · Evaluate the following products without multiplying directly. a) 103×107 b) 95×96 c) 104×96 · Factorise the following using appropriate identities. a) 9x2 +6xy+y2 b) 4y2- 4y+1 c) X2-y2/100 · Classify the following as a linear, quadratic and cubic polynomial. x2 + x , x - x3 , y + y2 + 4 , 7x3 , p2 , 3t · If p(x) = 5x – 4x2 +3 then find a)P(0) if x=0 b) p(-1) if x= -1 7. Factorise a) p2 - 5p – 24 b) 2x2 – x - 6
Answer» Answer: Std: 9 Sub: Maths --------------------------------------------- · Write TABLES 12 to 30 · USE suitable IDENTITIES to find the product of · (×+4)(×+10) · (×+8)(×-10) · (3×+4)(3×-5) · (3-2x)(3+2x) · Evaluate the following products without multiplying directly. a) 103×107 b) 95×96 c) 104×96 · Factorise the following using appropriate identities. a) 9x2 +6xy+y2 b) 4y2- 4y+1 c) X2-y2/100 · Classify the following as a linear, quadratic and cubic polynomial. x2 + x , x - x3 , y + y2 + 4 , 7x3 , p2 , 3t · If p(x) = 5x – 4x2 +3 then find a)P(0) if x=0 b) p(-1) if x= -1 7. Factorise a) p2 - 5p – 24 b) 2x2 – x - 6

Std: 9 Sub: Maths --------------------------------------------- · Write tables 12 to 30 · Use suitable identities to find the product of · (×+4)(×+10) · (×+8)(×-10) · (3×+4)(3×-5) · (3-2x)(3+2x) · Evaluate the following products without multiplying directly. a) 103×107 b) 95×96 c) 104×96 · Factorise the following using appropriate identities. a) 9x2 +6xy+y2 b) 4y2- 4y+1 c) X2-y2/100 · Classify the following as a linear, quadratic and cubic polynomial. x2 + x , x - x3 , y + y2 + 4 , 7x3 , p2 , 3t · If p(x) = 5x – 4x2 +3 then find a)P(0) if x=0 b) p(-1) if x= -1 7. Factorise a) p2 - 5p – 24 b) 2x2 – x - 6

Answer»

Answer:

Std: 9

Sub: Maths

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· Write TABLES 12 to 30

· USE suitable IDENTITIES to find the product of

· (×+4)(×+10)

· (×+8)(×-10)

· (3×+4)(3×-5)

· (3-2x)(3+2x)

· Evaluate the following products without multiplying directly.

a) 103×107

b) 95×96

c) 104×96

· Factorise the following using appropriate identities.

a) 9x2 +6xy+y2

b) 4y2- 4y+1

c) X2-y2/100

· Classify the following as a linear, quadratic and cubic polynomial.

x2 + x , x - x3 , y + y2 + 4 ,

7x3 , p2 , 3t

· If p(x) = 5x – 4x2 +3 then find

a)P(0) if x=0

b) p(-1) if x= -1

7. Factorise

a) p2 - 5p – 24

b) 2x2 – x - 6