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What is the solution for x^2-4x=?
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What is the solution for x^2-4x=?

What is the solution for x^2-4x=?-example-1
User Jamilah
by
5.7k points

1 Answer

4 votes

Answer:

Explanation:


18^{x^(2)+4x+4} = 18^(9x+18)\\

Compare the powers

x² + 4x + 4 = 9x + 18

x² + 4x + 4 - 9x -18 = 0

x² -5x -14 = 0

x² -7x + 2x - 2 *7 = 0

x(x-7) + 2(x - 7) = 0

(x-7)(x+2) = 0

x - 7 = 0 or x + 2 = 0

x = 7 or x = -2

User Justin MacLeod
by
6.1k points
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