Solving Quadratic Equations: Completing the Square Answers

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c =[___]

Answer:

x + 3x + 6x + 10x + 12

+ 3

+ 6

+ 10

+ 12

–4 or 4–6 or 62 or 10–10 or –2

–4 or 4

–6 or 6

2 or 10

–10 or –2

What number would you add to both sides of x2 + 7x = 4 to complete the square?

Option

61036100

100

Solve x2 + 8x = 33 by completing the square. Which is the solution set of the equation?

{–11, 3}

{–3, 11}

{–4, 4}

{–7, 7}

Which describes the solutions of the equation?

Since 7 and 11 are both rational, the sum and difference are rational.

Since 14 and 11 are both rational, the sum and difference are rational.

Since 7 is rational and is irrational, the sum and difference are irrational.

Since is irrational and 11 is rational, the sum and difference are irrational.

What is the solution set of x2 – 10 = 30x?

{–220, 250}

{–250, 220}

{15 – , 15 + }

{–15 – , –15 + }

What are the solutions of x2 = 8 – 5x?

Option

[___]

Answer:

100

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