exam Maths Puzzle Numerical Ability

Consider the function f(x) = x^2 + 4x +1

Find h, the x-coordinate of the vertex of this parabola.

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exam Other Question

A rectangle is 10 cm longer than it is wide. A line segment cuts the area enclosed into two pieces, one of which is a square. The area of the rectangle is 118cm squared more than the area of the square. What is the width of the rectangle? Solve the equation below.

Please enter your answer as two numbers, separated by a comma.
8x2+10x=3