for wich values of x does 2x^2+10x
2x^2 + 10x doesn't do anything, unless it's equal to something.All you've got so far is a number. We can't even tell what it is until we know what number 'x' is.Is there another little part of the question that you didn't copy ?
Factor out at 2 so 2(x+5)(x+0)Set them equal to 0 so2=0 that's not a solutionX+5=0 so x=-5 that worksAnd the last one x=-0 well negative 0 doesn't exist so the only value that works is -5
