book Maths Puzzle Numerical Ability

The volume of the box is represented by x squared plus five x plus six, times x plus five. Find the polynomial that represents the area of the bottom of the box? Height is given by x plus 2.

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book Other Question

use the discriminant to determine the number of solutions of the quadratic equation, and whether the solutions are real or complex. Note: It is not necessary to find the roots; just determine the number and types of solutions.

x^2 + 6x - 7 = 0 a/2 - 3/a (a divided by 2 minus 3 over a)