Ex 10.2, 7 (ii) - Chapter 10 Class 7 Algebraic Expressions
Last updated at Dec. 16, 2024 by Teachoo
Ex 10.2
Ex 10.2, 1
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Chapter 10 Class 7 Algebraic Expressions
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Transcript
Ex 10.2, 7 Simplify these expressions and find their values if x = 3, a = –1, b = -2 (ii) 2 – 8x + 4x + 4 2 − 8x + 4x + 4 = x (−8 + 4) + (4 + 2) = x (−4) + 6 = −4x + 6 Putting 𝑥 = 3 = −4(3) + 6 = −12 + 6 = −6
