103² - 102² = ________ × (103 - 102) = _________

Solution:

103² - 102² = (103 + 102) × (103 - 102) = 205

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

Here, a = 103 and b = 102

✦ Try This: Find 99² - 95² = __________ × (99 + 95)=______

99² - 95² = (99 - 95) × (99 + 95) = 776

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

Here, a = 99 and b = 95

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

NCERT Exemplar Class 8 Maths Chapter 7 Problem 49

103² - 102² = ________ × (103 - 102) = ________

Summary:

103² - 102² = (103 + 102) × (103 - 102) = 205

☛ Related Questions:

• Area of a rectangular plot with sides 4x² and 3y² is _______
• Volume of a rectangular box with l = b = h = 2x is ______
• The coefficient in - 37abc is ________