Algebramedium · Past Paper
The discriminant of √2x^2 + 7x + 5√2 = 0 is:
A9
B49
C25
D0
✓ Correct Answer: A — 9
D = 7^2 - 4(√2)(5√2) = 49 - 4(5)(2) = 49 - 40 = 9.
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✓ Correct Answer: A — 9
D = 7^2 - 4(√2)(5√2) = 49 - 4(5)(2) = 49 - 40 = 9.
Share this question