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Ex 10.2, 10 - 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
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 You are here
Chapter 10 Class 7 Algebraic Expressions
Serial order wise
Transcript
Ex 10.2, 10 Simplify the expression and find its value when a = 5 and b = –3. 2(a2 + ab) + 3 – ab2(a2 + ab) + 3 – ab = 2a2 + 2ab + 3 – ab = 2a2 + 3 + ab (2 − 1) = 2a2 + 3 + ab (1) = 2a2 + 3 + ab = 2a2 + ab + 3 Putting a = 5, b = −3 = 2(5)2 + (5) (−3) + 3 = 2 (25) − 15 + 3 = 50 − 12 = 38
