SOLUTION: Solve for x. a.) 7^x+1 + 7^x + 7^x-1 = 399 b.) (4^x+2)(5^x+1) = 32000 c.) (2^x-3)(5^x+1) = 625

SOLUTION: Solve for x. a.) 7^x+1 + 7^x + 7^x-1 = 399 b.) (4^x+2)(5^x+1) = 32000 c.) (2^x-3)(5^x+1) = 625

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Question 942773: Solve for x.
a.) 7^x+1 + 7^x + 7^x-1 = 399
b.) (4^x+2)(5^x+1) = 32000
c.) (2^x-3)(5^x+1) = 625
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Don't forget to use parentheses around the exponents.
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