exam Maths Puzzle Numerical Ability

For what values of k will the equation kx^2+(k-2)x+4k=0 have no real soloutions?

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exam Other Question

using the formula log, a = log a/log b find log^2 10000 round your answer to the hundreths place and show your work. solve x squared + 2x-8=-4 and x squared+2x-10=0