book Maths Puzzle Numerical Ability

Please help me solve this problem: y2+9y-22. I cannot figure this out at all!
Thank you!

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book Other Question

i need help with multiplying negative fractions!!! i get so confused! can u help me? For the following piecewise defined function find f(1)

f(x)={x^2+1,.....x<0
{x-1,.......x>0

Help, please...