2.3x=10.312+8.274
2.3x=10.312+8.312
2.3x=312(10+8)
2.3x=312.18
3x=312.18:2
3x=312.9
3x=312.32
3x=314
=>x=14
2.3x=10.312+8.274
2.3x=10.312+8.312
2.3x=312(10+8)
2.3x=312.18
3x=312.18:2
3x=312.9
3x=312.32
3x=314
=>x=14
Tim X
3) -12 + (2x – 9) + x= 0
4) 11 + (15 - x) = 1
5) 4 - (27 - 3) = x - (13 - 4)
6) 8 - (x - 10) = 23 - (- 4 +12)
7) 105 – 5(10 – 5x) = -20
8) (x -1)(8-2x)(3x+123) = 0
9) (x2 - 25)(x+ 10) = 0
10) x(x2+5) =
2 . 3x = 10.312 + 8. 274 .. Hay tim x
tim x , biet :
a, ( 19 × x + 2.52 ) : 14 = ( 13 - 8 )2
b, 2.3x = 10 . 312 + 8. 274
ha oi giup mik
2 x 3 mũ x = 10 x 3 mũ 12 + 8 x 27 mũ 4
2*3^x=10*3^12+8*27^4
Tính:
a) 2^5 x 13^12 x 7^8 : 27 x 13^10 x 7^9
b) 2^n x 11 x 3 : 6^n x 3
c) 5^5 x 7 x 9^5 : 15^10
d) 7 x 8^10 x 27^9 - 8 x 9^13 x 2^27 : 7 x 6^26 x 2^2 - 2^4 x 8^3 x 27^9
e) 2^2^1^2015
f) 2015^0^2015^0^2015
bài 1: tìm số nguyên x, biết
a) \(\left(25-2x\right)^3\): 5 - \(3^2\)= \(4^2\) b) 2 x \(3^x\)= \(10\) x \(3^{12}\) + 8 x \(27^4\)
Tìm x biết:
a) ( 19x + 2 . 5^2 ) : 14 = ( 13 - 8 )^2 - 4^2
b)2 . 3^x = 10 . 3^12 + 8 . 27^4
1) -5+x=12
2) 3-x=-7
3) 9-(x+3)=-12+x
4) 3-x=23-(-7)
5) x-15=(-11)-19
6) 15-27=(19-x)- (27+19)
7) | x-2 |=0
8) | 5-x |+3=5
9) | 4+x |+10+8
10) | x+1 |- 4=5
Trình bày cách làm dùm mình lun nhé !!! Nếu đúng mình **** cho !!!!!!!!!!!!!