exam Maths Puzzle Numerical Ability

66x^2 + 67x + 10 =0
Solve followig the square root method or the quadratic formula.
Confused on how to work this out any help will be appriciated.

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exam Other Question

Could someone help out with this one? #80. Work. Henry sold 120 magazine suubscriptions in x+2 days. If he sold at the same rate for another week, then how many magazines did he sell in the extra week?
Thank you. Graph y = -x - 2.