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Chapter 4 of 26
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Special Products And Factorization

NIOS · Class 10 · Maths

Flashcards for Special Products And Factorization — NIOS Class 10 Maths. Quick Q&A cards covering key concepts, definitions, and formulas.

45 questions20 flashcards5 concepts

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A square with side length (a+b) divided into smaller squares and rectangles to visually demonstrate that (a+b)² = a² + 2ab + b².
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20 Flashcards
Card 1Perfect Square Expansion

Expand: (3x + 4)²

Answer

Using formula (a + b)² = a² + 2ab + b² Step 1: Identify a = 3x, b = 4 Step 2: Apply formula → (3x)² + 2(3x)(4) + (4)² Step 3: Calculate → 9x² + 24x + 16 Answer: 9x² + 24x + 16

Card 2Perfect Square Expansion

Expand: (5a - 3b)²

Answer

Using formula (a - b)² = a² - 2ab + b² Step 1: Identify a = 5a, b = 3b Step 2: Apply formula → (5a)² - 2(5a)(3b) + (3b)² Step 3: Calculate → 25a² - 30ab + 9b² Answer: 25a² - 30ab + 9b²

Card 3Numerical Calculation

Calculate: 103² using special products

Answer

Write 103 = 100 + 3 Using (a + b)² = a² + 2ab + b² Step 1: (100 + 3)² = 100² + 2(100)(3) + 3² Step 2: = 10000 + 600 + 9 Step 3: = 10609 Answer: 10609

Card 4Numerical Calculation

Calculate: 97² using special products

Answer

Write 97 = 100 - 3 Using (a - b)² = a² - 2ab + b² Step 1: (100 - 3)² = 100² - 2(100)(3) + 3² Step 2: = 10000 - 600 + 9 Step 3: = 9409 Answer: 9409

Card 5Difference of Squares

Expand: (2x + 5)(2x - 5)

Answer

Using formula (a + b)(a - b) = a² - b² Step 1: Identify a = 2x, b = 5 Step 2: Apply formula → (2x)² - (5)² Step 3: Calculate → 4x² - 25 Answer: 4x² - 25

Card 6Numerical Calculation

Calculate: 73 × 67 using special products

Answer

Write as (70 + 3)(70 - 3) Using (a + b)(a - b) = a² - b² Step 1: (70 + 3)(70 - 3) = 70² - 3² Step 2: = 4900 - 9 Step 3: = 4891 Answer: 4891

Card 7Trinomial Expansion

Expand: (x + 3)(x + 7)

Answer

Using formula (x + a)(x + b) = x² + (a + b)x + ab Step 1: Identify a = 3, b = 7 Step 2: Sum: a + b = 3 + 7 = 10 Step 3: Product: ab = 3 × 7 = 21 Step 4: x² + 10x + 21 Answer: x² + 10x + 21

Card 8General Product

Expand: (3x + 2)(2x + 5)

Answer

Using formula (ax + b)(cx + d) = acx² + (ad + bc)x + bd Step 1: a = 3, b = 2, c = 2, d = 5 Step 2: ac = 3 × 2 = 6 Step 3: ad + bc = 3 × 5 + 2 × 2 = 15 + 4 = 19 Step 4: bd = 2 × 5 = 10 Answer: 6x² + 19

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What are the important topics in Special Products And Factorization for NIOS Class 10 Maths?
Special Products And Factorization covers several key topics that are frequently asked in NIOS Class 10 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
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Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.
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