That allows us to either factor it or apply the quadratic equation or complete the square, or any of the ways that we know how to solve quadratics.QED QED
Use completing the square to write the quadratic equation y is equal to negative 3x squared, plus 24x, minus 27 in vertex form, and then identify the vertex.QED QED
하지만 이것은 이차방정식이고, 두 개의 해를 가지고 있죠 왜냐하면 여기 양의 제곱근이 있고
But this is the quadratic formula, this is actually giving you two solutions, cause you have the plu, the positive squared here, and the negative square root.QED QED
The quadratic formula tells us that if we have a quadratic equation, in the form ax squared, plus bx, plus c is equal to 0, so in standard form.QED QED