exam Maths Puzzle Numerical Ability

Please help me with this problem, it would be so appreciated. This algebra is confusing me. PLEASE HELP ME!!!

What is the area in square feet of a room that is (2x-1) feet wide and (7x+3)feet long?

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exam Other Question
Find the foci of a hyperbola with the equation 9y2 - 72y - 16x2 - 64x - 64 = 0 I am stuck on correct answer for:

what are all possible values of X such that X^2 = 5x


I am not using any specific book. I am just practicing..