rút gọn biểu thức
P = 12(5^2 + 1)(5^4 + 1)(5^8 + 1)(5^16 + 1)
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Rút gọn biểu thức
P= 12(5^2+1)(5^4+1)(5^8+1)(5^16+1)
\(P=12\left(5^2+1\right)\left(5^4+1\right)\left(5^8+1\right)\left(5^{16}+1\right)\)
\(=\dfrac{\left(5^4-1\right)\left(5^4+1\right)\left(5^8+1\right)\left(5^{16}+1\right)}{2}\)
\(=\dfrac{\left(5^8-1\right)\left(5^8+1\right)\left(5^{16}+1\right)}{2}\)
\(=\dfrac{\left(5^{16}-1\right)\left(5^{16}+1\right)}{2}\)
\(=\dfrac{5^{32}-1}{2}\)
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\(P=12\left(5^2+1\right)\left(5^4+1\right)\left(5^8+1\right)\left(5^{16}+1\right)\)
\(2P=\left(5^2-1\right)\left(5^2+1\right)\left(5^4+1\right)\left(5^8+1\right)\left(5^{32}+1\right)\)
\(2P\)\(=\left(5^4-1\right)\left(5^4+1\right)\left(5^8+1\right)\left(5^{16}+1\right)\left(5^{32}+1\right)\)
\(2P=\)\(\left(5^8-1\right)\left(5^8+1\right)\left(5^{16}+1\right)\left(5^{32}+1\right)\)
\(2P=\left(5^{16}-1\right)\left(5^{16}+1\right)\left(5^{32}+1\right)\)
\(2P=5^{32}-1\)
\(P=\dfrac{5^{32}-1}{2}\)
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rút gọn biểu thức 12 x (5^2 +1 ) x ( 5^4 + 1) x (5^8 +1) x (5^16 + 1)
2p=24(52+1)(54+1)(58+1)(516+1)2p=24(52+1)(54+1)(58+1)(516+1)
=(52−1)(52+1)(54+1)(58+1)(516+1)=(52−1)(52+1)(54+1)(58+1)(516+1)
=(54−1)(54+1)(58+1)(516+1)=(54−1)(54+1)(58+1)(516+1)
=(58−1)(58+1)(516+1)=(58−1)(58+1)(516+1)
=(516−1)(516+1)=(516−1)(516+1)
=532−1 >p=5322
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Rút gọn biểu thức:
12.(52+1). (54+1). (58+1).(516+1)12.(52+1). (54+1). (58+1).(516+1)
Đặt 
\(A=12.\left(5^2+1\right).\left(5^4+1\right).\left(5^8+1\right).\left(5^{16}+1\right)\)
\(\Rightarrow2A=24.\left(5^2+1\right).\left(5^4+1\right).\left(5^8+1\right).\left(5^{16}+1\right)\)
\(2A=\left(5^2-1\right).\left(5^2+1\right).\left(5^4+1\right).\left(5^8+1\right).\left(5^{16}+1\right)\)
\(2A=\left(5^4-1\right).\left(5^4+1\right).\left(5^8+1\right).\left(5^{16}+1\right)\)
\(2A=\left(5^8-1\right).\left(5^8+1\right).\left(5^{16}+1\right)\)
\(2A=\left(5^{16}-1\right).\left(5^{16}+1\right)\)
\(2A=\left(5^{16}\right)^2-1^2\)
\(2A=5^{32}-1\)
\(\Rightarrow A=\frac{5^{32}-1}{2}.\)
Rút gọn biểu thức : P=12(5^2+1)(5^4+1)(5^8+1)(5^16+1)
Rút gọn biểu thức : 12(52+1)(54+1)(58+1)(516+1) .
rút gọn biểu thức P= 12 .(52+1).(54+1).(58+1).(516+1)
Rút gọn biểu thức
P = 12( 5^2 + 1)(5^4 + 1)( 5^8 + 1)( 5^16 + 1)
Giải chi tiết giùm nha
2P = 24.(5^2 + 1 )( 5^4 + 1 ) (5^8 + 1 )(5^16 + 1 )
2P = ( 5^2 - 1 )((5^2 + 1 )( 5^4 + 1 ) (5^ 8 + 1 )( 5^ 16 + 1)
2P = ( 5 ^ 4 - 1 )( 5 ^ 4 + 1 ) (5^8 + 1 )(5^16 + 1 )
2P = ( 5 ^8 - 1 )( 5^8 + 1 )( 5^16 + 1)
2P = ( 5 ^16 - 1 )( 5^16 + 1 )
2P = 5^32 - 1
=> P = \(\frac{5^{32}-1}{2}\)
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Rút gọn biểu thức :
A = 12.( 5^2 + 1 ).( 5^4 +1 ).( 5^8 + 1 ).( 5^16 + 1 )
B = ( 5x - 1 )2 + 2.( 1- 5x ).( 4 + 5x ) + ( 5x + 4 )^2
Rút gọn biểu thức :
P= 12.(52+1).(54+1).(58+1).(516+1)
Nhân cả 2 vế với 2 ta có:
2P=24(52+1)(54+1)(58+1)(516+1)
2P=(52_1)(52+1)(54+1)(58+1)(516+1)
2P=(54_1)(54+1)(58+1)(516+1)
2P=(58_1)(58+1)(516+1)
2P=(516_1)(516+1)
2P=532_1
P=\(\frac{5^{32}-1}{2}\)
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