If x = 2 + √3, what is the value of x² − 4x + 1?
Correct answer C. 0
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If 9^x − 9^(x − 1) = 216, what is the value of x?
Correct answer D. 5/2
If x = 3 + 2√2, what is the value of x + 1/x?
Correct answer B. 6
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If 3^(x + 2) = 243, what is the value of x?
Correct answer B. 3
What is the value of 2⁵ × 2³ ÷ 2⁶?
Correct answer A. 4
What is the value of 27^(2/3)?
Correct answer C. 9
What is the value of 16^(−3/4)?
Correct answer C. 1/8
If 2^(2x − 1) = 32, what is the value of x?
Correct answer C. 3
If 4^(x + 1) = 8^(x − 1), what is the value of x?
Correct answer D. 5
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What is 1/(√5 − √3) with its denominator rationalised?
Correct answer C. (√5 + √3)/2
What is 6/(√7 − 1) with its denominator rationalised?
Correct answer A. √7 + 1
Which is the greatest among ³√5, ⁴√7, √2 and ⁶√12?
Correct answer D. ³√5
What is the value of √75 + √12 − √27?
Correct answer A. 4√3
What is the value of (√3 + √2)²?
Correct answer D. 5 + 2√6
What is the value of (2√3 + 3√2)(2√3 − 3√2)?
Correct answer C. −6
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If m and n are whole numbers such that mn = 121, the value of (m – 1)n + 1 is:
Correct answer D. 1000
(0.04)-1.5 =?
Correct answer B. 125
(25)7.5 x (5)2.5 ÷ (125)1.5 = 5?
Correct answer B. 13
(256)0.16 x (256)0.09 =?
Correct answer A. 4
If 3(x – y) = 27 and 3(x + y) = 243, then x is equal to:
Correct answer C. 4