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5 answers

Since the bases (2) are the same, you can add the exponents. This calculates to 2 to the 8th power, which equals 256.

2007-06-07 12:32:47 · answer #1 · answered by brainster 2 · 0 0

2 to the third power = 2^3 = 2x2x2
2 to the fifth power = 2^5 = 2x2x2x2x2
so:
2^3 x 2^5 = 2x2x2x2x2x2x2x2 = 2^8 = 256

2007-06-07 12:32:33 · answer #2 · answered by jsardi56 7 · 0 0

you mean 2^3 x 2^5

when you multiply two numbers to the power of something, its the same as multiplying that number to the power of the sum of the powers so

2^3 x 2^5 is 2^8 just add the powers when multiplying

2007-06-07 12:33:45 · answer #3 · answered by Anonymous · 0 0

When you're multiplying two numbers together of the same base, remember this rule: (a^b)(a^c) = a^(b+c). So here we have:
(2^3)(2^5) = 2^(3+5) = 2^8 = 256.

2007-06-07 12:35:04 · answer #4 · answered by Anonymous · 0 0

it would be 2 to the eight power. when multiplying exponents with the same base you just add the exponents

2007-06-07 12:32:11 · answer #5 · answered by xxbagelloverxx 2 · 0 0

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