exam Maths Puzzle Numerical Ability

Where will the vertex of f(x)= -3(x+4)2 + 5 be located?

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exam Other Question

Solving equations with fractional coefficiants is to multiply both sides of the equation.

x/5-x+2/3=1/5
What I got was x=46
Please and Thank You=) Add. 13 + (-9) + 2 + (-10)