\(2^7:2^2+5^4:5^3.2^4-3.2^5\\ =2^{7-2}+5^{4-3}.2^4-3.32\\ =2^5+5.16-96\\ =25+80-96=9\)
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\(2^7:2^2+5^4:5^3.2^4-3.2^5\\ =2^{7-2}+5^{4-3}.2^4-3.32\\ =2^5+5.16-96\\ =25+80-96=9\)
a. 1334:1333+17.32
b. 21+22+23+24+25+26+27+28+29
c. 23.39+23.68−23.7
d. {2011+[45−(37−62)]:4}:2022
-22 ≤ x ≤ 20
a ) 27 . 75 + 25 . 27 - 150
b ) 12 : { 390 : [ 500 - ( 125 + 75 . 7 ) ] }
A = 1 + 21 + 22 + ... + 22015
81×(35+27)-35×(85-27)
Giúp mk nha
Mk cảm ơn
7.x-2+5.x=22
( 27 - x ) . ( x + 9) = 0
(27 -x)*(x+9) = 0
x-42= -15+27÷3mũ2