exam Maths Puzzle Numerical Ability

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Complete the square as an aid in graphing :

y = x^2 + 2x - 1

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exam Other Question

1/(b-5)-10/(b^2-5b+25)=1/(b+5) Write the equation of the line that passes through the x-intercept of 2(3x-y)= -3 and is normal perpendicular to that line.