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Ex 10.2, 4 - Chapter 10 Class 7 Algebraic Expressions
Last updated at July 4, 2023 by Teachoo
Ex 10.2
Ex 10.2, 1
Ex 10.2, 2 Important
Ex 10.2, 3
Ex 10.2, 4 You are here
Ex 10.2, 5 Important
Ex 10.2, 6 (i)
Ex 10.2, 6 (ii) Important
Ex 10.2, 6 (iii)
Ex 10.2, 6 (iv) Important
Ex 10.2, 7 (i) Important
Ex 10.2, 7 (ii)
Ex 10.2, 7 (iii) Important
Ex 10.2, 7 (iv)
Ex 10.2, 7 (v) Important
Ex 10.2, 8 (i)
Ex 10.2, 8 (ii) Important
Ex 10.2, 9 Important
Ex 10.2, 10
Chapter 10 Class 7 Algebraic Expressions
Serial order wise
Transcript
Ex 10.2, 4 If a = 2, b = – 2, find the value of: (i) a2 + b2a2 + b2 Putting a = 2, b = −2 = (2)2 + (−2)2 = 4 + 4 = 8 Ex 10.2, 4 If a = 2, b = – 2, find the value of: (ii) a2 + ab + b2a2 + ab + b2 Putting a = 2, b = −2 = (2)2 + (2)(−2) + (−2)2 = 4 − 4 + 4 = 0 + 4 = 4 Ex 10.2, 4 If a = 2, b = – 2, find the value of: (iii) a2 – b2a2 – b2 Putting a = 2, b = −2, = (2)2 − (−2)2 = 4 − 4 = 0
