exam Maths Puzzle Numerical Ability

Solve the equation by completing the square

4x^2 + 16x + 7 = 0

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exam Other Question

Draw the graph of the following linear function and give the domain and Range.
h(x)=-2x+3. IF P(4,-5) IS A POINT ON THE GRAPH OF THE FUNCTION y=f(x), WHAT IS THE CORRESPONDING POINT ON THE GRAPH OF y=2f(x-6).