exam Maths Puzzle Numerical Ability

I need help on 6r^2+7r=3. I already have 6r^2+7r-3=0. thanks, tyler

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I need help graphing functions doing shifts and/or reflections I need to label critical point

y = f (x) = x^2 - 5

y= f(x) = |x-2|

y= f(x) = -|x+5|

y = (x-3)^3 + 4

y
Write each complex number in rectangular form. If necessary, round to the nearest tenth:
7(cos 3pi/2 + i sin 3pi/2)
Thanks for your help :)