Because it tells you what the roots of the equation are, i.e. where ax2+bx+c=0 , which is often a useful thing to know. This is a factored quadratic equation.
To solve quadratics by factoring, we use something called "the Zero-Product Property". ... Therefore, when solving quadratic equations by factoring, we must always have the equation in the form "(quadratic expression) equals (zero)" before we make any attempt to solve the quadratic equation by factoring.
Answers & Comments
Answer:
Because it tells you what the roots of the equation are, i.e. where ax2+bx+c=0 , which is often a useful thing to know. This is a factored quadratic equation.
Answer:
To solve quadratics by factoring, we use something called "the Zero-Product Property". ... Therefore, when solving quadratic equations by factoring, we must always have the equation in the form "(quadratic expression) equals (zero)" before we make any attempt to solve the quadratic equation by factoring.