1)
a) (3x - 7)5 = 32
b) (4x - 1)3 =-27 . 125
c)34x + 4 = 81x+3
d) (x - 5)7 = (x - 5)9 (x \(\ge\)59)
2)
100 < 52x-3\(\le\) 59
25 <3x <260
3)
a) 10 . \(\dfrac{4^6.9^5+6^9.120}{8^4.3^{12}-6^{11}}\)
b) 1 +2+22+23+...+249+250
c)5 + 53+55+...+547+549
Giúp mình với!!!!!!!!!!!! Mai nộp bài rồi