exam Maths Puzzle Numerical Ability

Find the median for the following:

1, 12, 45, 34, 21, 60, 15

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exam Other Question

Hello:

Thank you so much for offering the free tutoring.

My exercise is:

x^2+4x+4=7.

I have gotten to:

x^2+4x+4=7=0
x^2+4x+(-3)=0
now I am stuck.

Thank you for your help. How would I simplify the following...

(8x^3y^2z^2)*3x^2 over y^3x^4

Thanks!