Solving Quadratic Equations: Completing the Square (Continued) — Quiz

Question 1

What are the zeros of the quadratic function f of x is equal to 6 x squared plus 12 x minus 7 ?

Revolt · Accepted Answer

x is equal to negative 1 minus square root of 13 sixths and x is equal to negative 1 plus square root of 13 sixths

Question 2

Sunil is solving the quadratic equation by completing the square. 6 x squared plus 24 x plus 5 is equal to 0 6 x squared plus 24 x is equal to negative 5 What should Sunil do next?

Revolt · Accepted Answer

Factor 6 out of the variable terms.

Question 3

Gio is solving the quadratic equation by completing the square. 5 x squared plus 15 x minus 4 is equal to 0 What should Gio do first?

Revolt · Accepted Answer

Isolate the constant.

Question 4

Patel is solving 8 x squared plus 16 x plus 3 is equal to 0 Which steps could he use to solve the quadratic equation? Choose three correct answers.

Revolt · Accepted Answer

8 times open paren x squared plus 2 x close paren is equal to negative 3; 8 times open paren x squared plus 2 x plus 1 close paren is equal to negative 3 plus 8; x is equal to negative 1 plus or minus square root of 5 eighths

Question 5

Maya is solving the quadratic equation by completing the square. 4 x squared plus 16 x plus 3 is equal to 0 What should Maya do first?

Revolt · Accepted Answer

Isolate the constant.

Question 6

Inga is solving 2 x squared plus 12 x minus 3 is equal to 0 Which steps could she use to solve the quadratic equation? Choose three correct answers.

Revolt · Accepted Answer

x plus 3 is equal to plus or minus square root of 21 halves; 2 times open paren x squared plus 6 x close paren is equal to 3; 2 times open paren x squared plus 6 x plus 9 close paren is equal to 3 plus 18

Question 7

Which is a zero of the quadratic function f of x is equal to 16 x squared plus 32 x minus 9 ?

Revolt · Accepted Answer

x is equal to negative 2 point 2 5

Question 8

What are the zeros of the quadratic function f of x is equal to 8 x squared minus 16 x minus 15 ?

Revolt · Accepted Answer

x is equal to 1 minus square root of 23 eighths and x is equal to 1 plus square root of 23 eighths

Question 9

Lie is solving the quadratic equation by completing the square. 3 x squared plus 18 x minus 8 is equal to 0 3 x squared plus 18 x is equal to 8 What should Lie do next?

Revolt · Accepted Answer

Factor 3 out of the variable terms.

Question 10

What are the zeros of the quadratic function f of x is equal to 2 x squared plus 16 x minus 9 ?

Revolt · Accepted Answer

x is equal to negative 4 minus square root of 41 halves and x is equal to negative 4 plus square root of 41 halves

Solving Quadratic Equations: Completing the Square (Continued) — Quiz Answers

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