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# Evaluate: (35.4)² - (14.6)²

**Solution:**

Given, (35.4)² - (14.6)²

Using standard identity: (a² - b²) = (a + b)(a - b)

Here, a = 35.4 and b = 14.6

(35.4)² - (14.6)² = ( 35.4 + 14.6)(35.4 - 14.6)

= (50)(20.8) = 1040

**✦ Try This: **Evaluate: (16.4)² - (13.6)²

Given, (16.4)² - (13.6)²

Using standard identity: (a² - b²) = (a + b)(a - b)

(16.4)² - (13.6)² = ( 16.4 + 13.6)(16.4 - 13.6)

= (30)(2.8) = 84

**☛ Also Check: **NCERT Solutions for Class 8 Maths Chapter 9

**NCERT Exemplar Class 8 Maths Chapter 7 Problem 86(xvi)**

## Evaluate: (35.4)² - (14.6)²

**Summary:**

Evaluating (35.4)² - (14.6)² we get, 1040

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