Solve each quadratic equation by the square root method. X^2+2x-3=0
1 answer:
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Answer:
C. x ≈ 0.28
Step-by-step explanation:
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x ≈ 0.28
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You can divide both sides of the given equation by 5, then take natural logs and divide by 5 again.
5e^(5x) = 20 . . . . . . given
e^(5x) = 4 . . . . . . . . divide by 5
5x = ln(4) . . . . . . . . take natural logs
x = ln(4)/5 . . . . . . . divide by 5
x ≈ 0.277259 ≈ 0.28
