Math Problem Statement

Simplify and evaluate the given mathematical expressions.

Solution

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1. Simplify the following expressions:

i. x8÷x8x^8 \div x^8

Using the division of powers property, am÷an=amna^m \div a^n = a^{m-n}: x8÷x8=x88=x0=1x^8 \div x^8 = x^{8-8} = x^0 = 1

ii. (2p)4×(2p)4(2p)^4 \times (2p)^{-4}

Use the property of exponents (am)(an)=am+n(a^m)(a^n) = a^{m+n}: (2p)4×(2p)4=(2p)4+(4)=(2p)0=1(2p)^4 \times (2p)^{-4} = (2p)^{4 + (-4)} = (2p)^0 = 1

iii. a2×a3a×a4\frac{a^2 \times a^3}{a \times a^4}

Simplify using the exponent rules: a2×a3a×a4=a2+3a1+4=a5a5=a0=1\frac{a^2 \times a^3}{a \times a^4} = \frac{a^{2+3}}{a^{1+4}} = \frac{a^5}{a^5} = a^0 = 1

iv. y4×y2y6\frac{y^4 \times y^2}{y^6}

Using the division of powers: y4×y2y6=y4+2y6=y6y6=y0=1\frac{y^4 \times y^2}{y^6} = \frac{y^{4+2}}{y^6} = \frac{y^6}{y^6} = y^0 = 1

v. p3×p5×pp6×p3\frac{p^3 \times p^5 \times p}{p^6 \times p^3}

Using the multiplication and division of powers: p3×p5×pp6×p3=p3+5+1p6+3=p9p9=p0=1\frac{p^3 \times p^5 \times p}{p^6 \times p^3} = \frac{p^{3+5+1}}{p^{6+3}} = \frac{p^9}{p^9} = p^0 = 1

vi. x2×x4×x6y2×y3×y6\frac{x^{-2} \times x^{-4} \times x^6}{y^{-2} \times y^3 \times y^{-6}}

Simplify each part: x2×x4×x6y2×y3×y6=x24+6y2+36=x0y5=1y5=y5\frac{x^{-2} \times x^{-4} \times x^6}{y^{-2} \times y^3 \times y^{-6}} = \frac{x^{-2-4+6}}{y^{-2+3-6}} = \frac{x^0}{y^{-5}} = \frac{1}{y^{-5}} = y^5


2. Evaluate the following:

i. 20×32^0 \times 3

Since 20=12^0 = 1: 20×3=1×3=32^0 \times 3 = 1 \times 3 = 3

ii. (4)0(-4)^0

Any non-zero number raised to the power of 0 equals 1: (4)0=1(-4)^0 = 1

iii. (xy)0+1\left( \frac{x}{y} \right)^0 + 1

Any expression raised to the power of 0 equals 1: (xy)0+1=1+1=2\left( \frac{x}{y} \right)^0 + 1 = 1 + 1 = 2

iv. (x2y2)0\left( \frac{x^2}{y^2} \right)^0

(x2y2)0=1\left( \frac{x^2}{y^2} \right)^0 = 1

v. 50+15^0 + 1

Since 50=15^0 = 1: 50+1=1+1=25^0 + 1 = 1 + 1 = 2

vi. (23)0\left( \frac{2}{3} \right)^0

(23)0=1\left( \frac{2}{3} \right)^0 = 1

vii. (2ab)020(2ab)^0 - 2^0

(2ab)020=11=0(2ab)^0 - 2^0 = 1 - 1 = 0

viii. (abc)0(abc)^0

(abc)0=1(abc)^0 = 1


Would you like further clarification or details on any of these solutions?

5 Related Questions:

  1. What happens when a negative base is raised to an even exponent?
  2. How do you handle division with variables that have negative exponents?
  3. What is the result of multiplying terms with the same base but different exponents?
  4. What is the importance of the zero exponent rule in algebra?
  5. How can we simplify expressions involving both powers and roots?

Tip:

Always remember that any non-zero number or expression raised to the power of 0 is equal to 1, which can simplify many complex expressions.

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Math Problem Analysis

Mathematical Concepts

Exponents
Simplification of Expressions
Zero Exponent Rule
Multiplication and Division of Powers

Formulas

a^m ÷ a^n = a^(m-n)
(a^m)(a^n) = a^(m+n)
(x^0) = 1 for x ≠ 0

Theorems

Zero Exponent Rule
Properties of Exponents

Suitable Grade Level

Grades 8-10