SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Identify the equation without completing the square. 12) 5x2 - 6y2 + 2x - 3y - 5=0 12) MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. Write the equation in terms of a rotated x'y'-system using 0, the angle of rotation. Write the equation involvin in standard form. 13) xy +16 = 0; 0 = 450 x 12 x 12 A) * 12 2 + = 1 32 32 B) y'2 =-32x' 32 32 = 1 D) + =1 4 2 SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question. Identify the equation without applying a rotation of axes. 14) 10x2 + 8 3xy + 2y2 - 41 = 0 14)