Answer:
It is the 2nd choice!
Step-by-step explanation:
Logx (8x-3) - logx 4 = 2
logx [(8x-3)/4] = 2
x^2=(8x-3)/4
4x^2=4(8x-3)/4
4x^2=8x-3
4x^2-8x+3=8x-3-8x+3
4x^2-8x+3=0
4(4x^2-8x+3=0)
(4^2)(x^2)-8(4x)+12=0
(4x)^2-8(4x)+12=0
(4x-2)(4x-6)=0
2(4x/2-2/2)2(4x/2-6/2)=0
4(2x-1)(2x-3)=0
4(2x-1)(2x-3)/4=0/4
(2x-1)(2x-3)=0
Two options:
1) 2x-1=0
2x-1+1=0+1
2x=1
2x/2=1/2
x=1/2
2) 2x-3=0
2x-3+3=0+3
2x=3
2x/2=3/2
x=3/2
Answer: Two solutions: x=1/2 and x=3/2
Answer:
x is 10°, expression of angle could be
180 - z or 180 - 5x, the value of y is 130° if z is 50°
Step-by-step explanation:
y + z is 180°
x is 50/5 = 10°
z is 50°
y is 180 - z = 180 - 50 = 130°
y can be 180 - 5x or 180 - z
Yes it’s right the second group of terms should be -1(x+1)
