Maths: How is the quadratic formula expressed for completing the square?

Question

How is the quadratic formula expressed for completing the square?

Alana Ray · Accepted Answer

For completing the square the quadratic formula is expressed from ax^2 + bx + c 
to a (x + d)^2 + e, 
where d = b/2a, 
and e = c – b^2/4a, 
although it may also be expressed as e = c – ad^2

Maths

How is the quadratic formula expressed for completing the square?

For completing the square the quadratic formula is expressed from ax^2 + bx + c to a (x + d)^2 + e, where d = b/2a, and e = c – b^2/4a, although it may also be expressed as e = c – ad^2

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