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Zorluk: KolayOperations with Variable Exponents

Evaluate the product of the monomial expressions 4z54z^5 and 2z32z^3. Which of the following represents the simplified result?

  1. 8z88z^8Cevap
  2. B
    8z158z^{15}
  3. C
    6z86z^8
  4. D
    6z156z^{15}

Cevap

The expression simplifies to 8z88z^8.
When multiplying two monomial expressions, the numerical coefficients are multiplied together (4×2=84 \times 2 = 8), and the exponents of the common variable base are added together according to the product rule for exponents (5+3=85 + 3 = 8). This results in 8z88z^8.

Adım Adım Çözüm

1
Identify the operation to be performed between the two terms.
The terms 4z54z^5 and 2z32z^3 are being multiplied.
Understanding the operation is required to apply the correct mathematical rules for coefficients and exponents.
2
Multiply the numerical coefficients.
4×2=84 \times 2 = 8
Coefficients in a product of monomials are multiplied together normally.
3
Multiply the variable parts by applying the product rule for exponents.
z5×z3=z5+3=z8z^5 \times z^3 = z^{5+3} = z^8
When multiplying exponential expressions with the same base, their exponents must be added.
4
Combine the calculated coefficient and the variable part.
8z88z^8
This brings the simplified pieces together into the final term.

Anahtar Kavram

Operations with Variable Exponents
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