Question

solve for x: 9^2x÷9^-5=9^13.......​

Answer 1

hey it's is helpful For you

√2x+9  +  x             =              13

√2x+9                     =              13-x

squaring both sides

2x + 9                        =              (13-x)²

2x+9                          =              169 - 26x + x²

2x +26x +9 - 169       =              x²

28x-160                     =               x²

by using factorization method

x²-28x+160                =                0

x² - 20x - 8x +160      =                0

x(x-20) -8(x-20)          =                0

(x-20)(x-8)                   =                0

x = 20 and x= 8

hope it help

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Answer 2

Answer:

I also want this question answer

sorry I don't know what is the answer