exam Maths Puzzle Numerical Ability

determine whether the equation has 2 solutions, 1 solution, or no solution. SHOW WORK! PUT IN STANDARD FORM!

22)x^2-3x+2=0
24)-3x^2+5x-1=0
26)x^2-2x+4=0
28)3x^2-6x+3=0
30)-5x^2+6x-6=0

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exam Other Question

if i represents the imaginary number whose square is -1,then (radical2 + radical2 x i)^4= ? y= -2x^+8x+11 I need to be able to graph this but the graph I'm given doesn't seem to work with this problem. Can you help?

Thank you