X+(x+4)=28 ?

What does x equal?

For what values of x is x2 + 2x = 24 true?

With finding limits of multi variable !

Heather is writing a quadratic function that represents a parabola that touches but does not cross the x-axis at x = -6. which function could heather be writing? fx) = x2 + 36x + 12 = x2 - 36x - 12 f(x) = -x + 12x + 36 f(x) = -x? - 12x - 36