Nếu thay log2 bằng ln, phương trình có nghiệm thay đổi không?

log3(x + 3)2 = log3(10x + 6). (x + 3)2 = 10x + 6 x2 + 6x + 9 − 10x − 6=0 x2 − 4x +3=0. (x − 3)(x − 1) = 0 x = 3 x = 1. Question 21(e) log2(x + 1) + log8(x +1)=4. Jun 8, 2012 ... ... (1/log2). This property of δ will be important in what follows ... that z ≥ y + 1 and x/y ≥ 1 + x/z. Then. H(x, y, z) H(x, x/z, x/y) ... x1, x = 81. 3. Set up equation. 0 = log2(3x – 4) + 1,. -1 = log2(3x – 4). Use log2a = b→ a = 2b. 2-1 = 3x – 4, ½ = 3x – 4. Solve x = 3/2. 4. Use laws of logs. Jul 7, 2020 ... x(1 - 2 log2 x). (d) (2x2 + 1) log2 x,. (e). 1 + tan2(arcsen x). /. 1 ... 3x(1 + e−x)2 + 8 cos(x2 + x) - 8(x + 1)3/2. |x3 + x| + x g) lim n ... cos2(3x) − sin(3x)+1=0. D) Sketch the graph of the following function y ... (x + 1)(5 − x). ≥ 0 x + 1 x2 − 9. <. 1 x + 3. 4. Page 5. Logarithms (30 ... Determine the following for the function f(x) a) Domain of ƒ b) Range of f c) x-intercepts (if any). 7. Solve for z: - log2(x) — log₂(x − 2). 1. I 1. 2x. 72 d) ... ... x+x+2x²-x+4 by 3+1. 0. -RIN. Page 3. 16. (a) The equation 1228-23x2-3x+20 has a solution x = 2. Find all other solutions. (b) Solve for x, the equation 12x+8x2- ... Mar 19, 2016 ... ⇒x=2. Explanation: Rearrange;. log3(x+1)=2−log2x. log2(x+1)=log24−log2x. log3(x+1)=log2(4x). Now lets convert everything to base 10. 1 e2x. Page 2. Solve each exponential equation in Exercises 23-48. Express the solution set in terms of natural logarithms. Then use a calculator to abtain a ... Oct 19, 2003 ... f(x) = 1/x - (x-1). A graph of f(x) over the interval 0 ≤ x ≤ 4 is ... [F,E] = LOG2(X) for a real array X, returns an array F of real ...