Question

FIND x: (5^x) + 2(5^x) + 3(5^x) = 750​

Answer 1

5^x+5^x-1=750

5^x+5^x-1= 5⁴+5³

compare power because bases are equal

X-1= 3.= X= 4

; x=4

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Answer 2

Answer:

(5^x)+2(5^x)+3(5^x)= 750

5^x(1+2+3)= 750

5^x×6= 750

5^x= 750/6

5^x= 125

5^x= 5^3

On comparing the bases we get

x= 3

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