Solving quadratic equations by completing the square:
z^2 - 3z - 5 = 0

Step-by-step explanation:

We are given the following quadratic equation by completing the square:

Rewriting the equation in the form to get:

Completing the square to get:

Step-by-step explanation:

Add 5 to both sides of the equation:

Divide the coefficient of by two and square it:

Add it to both sides of the equation:

Then, simplifying:

Apply square root to both sides and solve for "z":

answer: i don't understand. what are the options

step-by-step explanation:

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.