b) Find the domain for f(x)= 5x + ln(x^2+3x-4) 2. Solve: 4^x +12 = 16^x
1a 2x-5 > 0 x > 5/2 1b x^2+3x-4 > 0 x < -4 or x>1 #2 4^x + 12 = 4^2x (4^x)^2 - 4^x - 12 = 0 (4^x - 4)(4^x + 3) = 0 4^x = 4 or -3 x = 1
You can ask a new question or answer this question.