Exam Maths Puzzle Algebra

Solve
2^(2x)- 2^(x)- 6 = 0

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Exam Other Question

Q1) In twenty-two years, Alexis' age will be two hundred ninety-seven less than four times the age of Alyssa.

Q2) Alexis' age is one hundred sixty-two less than three times the age of Alyssa.
What are their ages? Solve
4x^2-8x>0