Question

quadratic formula proofquadratic formula proof ​

Answer 1

Answer:

Step-by-step explanation:

ax2+bx2+c=0

x2 +b/ax+c/a =0

x2+b/a x= -c/a

x2+b/a x+(b÷2a)2=-c/a+(b/2a)2

Left hand side is now in the x2 +2dx+d2 format where d is b/ 2a

(x+b/2a)2= -c/a+[b/2a]2

Answer 2

Answer:

First, using the vertex formula: y = a(x – h)^2 + k, where "h" is the vertex. Put the general equation y = ax^2 + bx + c into the vertex form and you will find that "h" will equal -b/2a.

Step-by-step explanation:

hope it helps u mate