katherine0677
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PLS HELP! WILL GIVE BRAINLIEST! 70 PTS! pls only answer if you know
Completing the Square
Solve the equation by completing the square. Show your work.
x2 – 30x = –125
Step 1: Add to both sides of the equation. (2 points)







Step 2: Factor the left side of the equation. Show your work. (2 points)
Hint: It is a perfect square trinomial.









Step 3: Take the square root of both sides of the equation from Step 2. (1 point)







Step 4: Simplify the radical and solve for x. Show your work. (1 point)

Respuesta :

wet0067

Answer:

25, 5

Step-by-step explanation:

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x^2-30x=-125
x^2-30x+225=-125+225
x^2-30x+225=100
(x-15)^2=100
First answer:
x-15=+10
x=25
Second answer:
x-15=-10
x=5

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