exam Maths Puzzle Numerical Ability

Find the constant term that should be added to make the following expression a perfect-square trinomial.

x^2+7x

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exam Other Question
solve this equation

8 ^x^2-8x =1/2

Smaller Value:__________
Larger Valve:___________ Solve equation for x using quadratic formula
4x^2+5x-2=0
If there is more than one solution, seperate with commas