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Zorluk: ZorOrder of Operations and Number Properties

What is the value of the expression below?

−24−∣−12+(−2)3∣(−1)5×32−(−2)3÷(13−1) \frac{-2^4 - |-12 + (-2)^3|}{(-1)^5 \times 3^2 - (-2)^3} \div \left( \frac{1}{3} - 1 \right)
  1. A
    −24-24
  2. B
    −6-6
  3. C
    66
  4. −54-54Cevap
  5. E
    5454

Cevap

−54-54
Evaluating the numerator gives −36-36, and the denominator simplifies to −1-1, resulting in a fraction of 3636. Dividing 3636 by (1/3−1)=−2/3(1/3 - 1) = -2/3 is performed by multiplying 3636 by the reciprocal −3/2-3/2, which yields the final result of −54-54.

Adım Adım Çözüm

1
Evaluate the numerator of the first fraction.
Numerator = −36-36
First, evaluate the exponent inside the absolute value: (−2)3=−8(-2)^3 = -8. Next, evaluate the expression inside the absolute value: −12+(−8)=−20-12 + (-8) = -20. Taking the absolute value gives ∣−20∣=20|-20| = 20. Separately, evaluate the exponent −24=−(24)=−16-2^4 = -(2^4) = -16 because exponentiation has priority over negation. Finally, subtract the absolute value term from this to get −16−20=−36-16 - 20 = -36.
2
Evaluate the denominator of the first fraction.
Denominator = −1-1
Evaluate the exponents first: (−1)5=−1(-1)^5 = -1, 32=93^2 = 9, and (−2)3=−8(-2)^3 = -8. Then, perform the multiplication: −1×9=−9-1 \times 9 = -9. Finally, perform the subtraction: −9−(−8)=−9+8=−1-9 - (-8) = -9 + 8 = -1.
3
Simplify the first fraction.
Fraction = 3636
Divide the numerator by the denominator: −36−1=36\frac{-36}{-1} = 36.
4
Evaluate the expression inside the divisor parentheses.
Divisor = −23-\frac{2}{3}
Perform the fraction subtraction: 13−1=13−33=−23\frac{1}{3} - 1 = \frac{1}{3} - \frac{3}{3} = -\frac{2}{3}.
5
Divide the simplified fraction by the divisor.
Final Value = −54-54
To divide by a fraction, multiply by its reciprocal: 36÷(−23)=36×(−32)=18×(−3)=−5436 \div \left(-\frac{2}{3}\right) = 36 \times \left(-\frac{3}{2}\right) = 18 \times (-3) = -54.

Anahtar Kavram

Order of Operations (PEMDAS) and Number Properties
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