Integers Questions and Answers - Form 1 Topical Mathematics

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Questions

3x – 1 > -4
2x + 1≤ 7
Find the value of x
2^(x-3) x 8^(x+2) = 128

Answers

X > -1
X ≥ 3
2^x ÷ 2³ x 8^x x 8² = 128
2^x ÷ 2³ x 2^3x x 8² = 128
Let 2^x be y
^y/₈ x y³ x 64 = 128
^8y/₈ = ¹²⁸/₈
y⁴ = 16
y⁴ = 24
y = 2

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Read 26274 times Last modified on Wednesday, 10 February 2021 06:49

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Published in Mathematics Form 1 Topical Revision Questions and Answers

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