What is the solution to x^2 + 5x - 7 = 0

X can be found by using the quadratic equation. x = -b plus or minus (b2-4ac)1/2/2a. We find that x=-5/2 plus or minus (53)1/2/2.

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Answered by Sacha A. Maths tutor

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The equation of a curve is y = (x + 3)^2 + 5. Find the coordinates of the turning point.


A is the point with coordinates (5, 9) B is the point with coordinates (d, 15) The gradient of the line AB is 3 Work out the value of d.


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