Answer:
Step-by-step explanation:
5^2x=7^x+1 ⇔ ln5^2x = ln7^x+1 ⇔ 2xln5 = (x+1)ln7 ⇔ (2ln5-ln7)x = ln7
⇔ x = ln7/(2ln5-ln7)
Answer:
GCF = 1
for the values 2, 10, 21
Step-by-step explanation:
The factors of 2 are: 1, 2
The factors of 10 are: 1, 2, 5, 10
The factors of 21 are: 1, 3, 7, 21
Then the greatest common factor is 1.
2(2x+11)-(-5+3x)
4x +22+5-3x
x+27 or Option C