Algebramedium · Past Paper
Find 'c' if the equation 2x^2 - 4x + c = 0 has equal roots.
A2
B-2
C4
D1
✓ Correct Answer: A — 2
D = (-4)^2 - 4(2)(c) = 0 => 16 - 8c = 0 => c = 2.
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✓ Correct Answer: A — 2
D = (-4)^2 - 4(2)(c) = 0 => 16 - 8c = 0 => c = 2.
Share this question