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2006-08-31 01:45:42 · 18 answers · asked by jenny 1 in Science & Mathematics Mathematics

18 answers

64 * 32768 = 2097152

2006-08-31 01:48:23 · answer #1 · answered by time-OUT 4 · 0 0

1)If ^ is prior *, then
8^2*8^5 = (8^2)*(8^5) = 8^7 = 2 ^ 21 hm..if not to use a calculator:
= 2 ^10*2^10*2 =
Everybody knows that 2^10 = 1024, so:
=1024*1024*2=
easy to square in brain
(1024*1000+1024*24)*2 = (1024000+1000*24+24*24) =1048576*2=
and with the final move
=2097152
2)On the other hand, if * is prior ^:
8^2*8^5 = 8^(2*8)^5 = 8^16^5 = 8^(16*5) = 8^80 = 2^240=
OMG, i memorize of an ancient Indian legend about a peasant and a sultan. I can't count it, but maybe I can simplify so that we can use our previous results.
=2^(21*11+9)=[(2^21)^11]*[2^9] = (2097152^11)*512

2006-08-31 09:12:39 · answer #2 · answered by leo f 1 · 0 0

In this particular type of case, where the result is the product of a common number (n) raised to two different powers (a, b), the general rule is:

(n^a) × (n^b) = n^(a+b)

In this case:

n=8
a=2
b=5

then

(8^2) × (8^5) = 8^(2+5) = (8^7) = 2097152

(8^2) = 64
(8^5) = 32768

and

(64 × 32768) = 2097152

or

(8^7) = 2097152

 

2006-08-31 09:13:47 · answer #3 · answered by Jay T 3 · 0 0

64 x 32768 = 2097152

^ means raise to a power, * means multiply.

By order of operations you raise to the power first.
So 8^2 equals 8 x 8, which equals 64.

8^5 equals 8 x 8 x 8 x8 x8, which equals 32768.

* means multiply
So 64 x 32768, which gives you 209152.

PLEASE NOTE:
This also equals 8^7.

Because the base is the same, you can simply add the exponents. The base in this case is 8.
So you can simply add the exponents 2 and 5 to get 7.

So 8^2 * 8^5 = 8^7, which equals 2097152

2006-08-31 09:04:49 · answer #4 · answered by Friend_88 3 · 0 0

8^2 x 8^5

8^2 +5= 8^7

Rule: when multiplying add the exponents

8^7 = 2097152

The answer is 2097152

2006-08-31 09:53:39 · answer #5 · answered by SAMUEL D 7 · 0 0

8^7

2006-08-31 09:08:00 · answer #6 · answered by johnavaro 3 · 0 0

8^2*8^5
Base same so Add the powers:
8^ (2+5) = 8 ^7 = 2097152

2006-08-31 08:52:12 · answer #7 · answered by Princess 2 · 0 0

8^7

2006-08-31 08:52:04 · answer #8 · answered by alandicho 5 · 0 0

8^2*8^5=2^6*2^15=2^21

2006-08-31 09:00:54 · answer #9 · answered by None A 3 · 0 0

according to the order of operations,
indices to be simplified prior to multiplications

so,

8^2*8^5
= (8^2) * (8^5)
= 64 * 32768
= 2097152

2006-08-31 09:45:26 · answer #10 · answered by Praful M Nimbargi 2 · 0 0

= 8 ^ (2 + 5)
= 8 ^ 7
= 2097152 Ans.

2006-08-31 09:19:04 · answer #11 · answered by Mr Fact 3 · 0 0

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