EXPONENTS ARE NOT ON THE LEVEL
"The Laws or Rules of Exponent Computation" |
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"Say That Again, Then Explain It"
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- To Add number with the same base,
- the exponents must be equal.
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- To Subtract numbers with the same base,
- the exponents must be equal.
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- To Multiply numbers with the same base,
- copy the base and
add the exponents.
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- To Divide numbers with the same base,
- copy the base and subtract
the exponents.
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- To Raise to A Power
- copy the base, multiply the exponents.
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- To Take A Root
- copy the base, divide the exponent by the index.
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- To Add number with the same base,
the exponents must be equal.
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- To Subtract
numbers with the same base, the exponents must
- be equal.
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Example #1: Simplify: 3² + 3²
- 3² + 3² = 9 + 9 = 18
- OR
- 3² + 3² = 1 · 3² + 1 · 3² = (1 + 1) · 3² =
- (2) · 3² = (2)(9) = 18
- Note: The computation does not involve the exponents.
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Example #2: Simplify: x² + x²
- x² + x² = 1 · x² + 1 · x² = (1 + 1) · x² =
- (2) · x² = (2)(x²) = 2x²
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Example #3: Simplify: 3² + 3³
- 3² + 3³ = 3² + 3³
- Note: The exponents are not the same, but, here one
- may use arithmetic.
- 3² + 3³ = 9 + 27 = 36
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Example #4: Simplify: x² + x³
- x² + x³ = x² + x³
- Note: The exponents are not the same, and
- arithmetic can't help.
- x² + x³ = x² + x³
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- To Take A Root
copy the base, divide the exponent by the index.
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