Спримерами. a) 2^4x=8 b) 9^x-5=1 c) 6^4x^2-2x=36 d) - вопрос №81151812489516422362753222628 от joi7 29.01.2023 22:31

Question

Математика: Спримерами. a) 2^4x=8 b) 9^x-5=1 c) 6^4x^2-2x=36 d) 27x=5^3x 2. a) 2^2x-6*2^x+8=0 3. a)3^x+3^x+2 30

joi7 · Answer

5(х-3) = -2(х-4)+65х - 15 = - 2х + 8 + 65х + 2 х = 14 + 157х = 29х = 29/7х = 4 1/75 ( 4 1/7 - 3) = - 2 (4 1/7 - 4) + 65 * 1 1/7 = - 2 * 1/7 + 6(5*8)/7 = - 2/7 + 640/7 = 5 5/75 5/7 = 5 5/79/10 * х = - 5х = - 5 : 9/10 = - 5/1 * 10/9х = - 50/9х = - 5 5/99/10 * (-50/9) = - 5-50/10 = -5-5=-5-3/7 * х = -27/49х = - 27/49 : (-3/7) = - 27/49 * (-7/3) = (9 * 1) /(7*1)х = 9/7- 3/7 * 9/7 = - 27/49- 27/49 = - 27/49...

Спримерами. a) 2^4x=8 b) 9^x-5=1 c) 6^4x^2-2x=36 d) 27x=5^3x 2. a) 2^2x-6*2^x+8=0 3. a)3^x+3^x+2> 30