Completing The Square

Question 1

Solve for in the equation .

Revolt · Accepted Answer

B: x = 5 plus-or-minus StartRoot 35 EndRoot

Question 2

Solve for in the equation .

Revolt · Accepted Answer

D: x = five-fourths plus-or-minus StartFraction StartRoot 41 EndRoot Over 4 EndFraction

Question 3

Which value must be added to the expression x2 + 12x to make it a perfect-square trinomial?

Revolt · Accepted Answer

B: 36

Question 4

Solve for in the equation .

Revolt · Accepted Answer

D: x = 1 plus-or-minus StartRoot 47 EndRoot

Question 5

Solve for in the equation .

Revolt · Accepted Answer

B: x = negative 1 plus-or-minus StartRoot 17 EndRoot

Question 6

Solve for in the equation .

Revolt · Accepted Answer

C: x = 6 plus-or-minus StartRoot 23 EndRoot i

Question 7

Which value must be added to the expression x2 + x to make it a perfect-square trinomial?

Revolt · Accepted Answer

A: One-fourth

Question 8

Solve for in the equation .

Revolt · Accepted Answer

A: x = 2 plus-or-minus StartRoot 42 EndRoot

Question 9

Solve for in the equation .

Revolt · Accepted Answer

A: x = –12 or x = 2

Question 10

Solve for in the equation .

Revolt · Accepted Answer

A: x = –6 or x = 2

Completing The Square Answers