Quiz Results

Quiz	Quadratic formula 2 (surds in answers)
Name	U s a y d A l i
Email	v o i d m c 7 @ g m a i l . c o m
Result	PASSED
Score	5 / 6 (83.3%)
Passing score	4.8
Quiz took	1 h 13 min 55 sec
Quiz finished at	2023-05-04 19:23:40

Responses

Use the quadratic formula to solve for x. \phantom{\rule{0ex}{0ex}}You should use pen and paper. \phantom{\rule{0ex}{0ex}}You should not use a calculator. {x}^{2} = x + 3

Awarded Points: 1

Correct Response: x = \frac{1±\sqrt{13}}{2}

User Response: x = \frac{1±\sqrt{13}}{2}

Use the quadratic formula to solve for x. \phantom{\rule{0ex}{0ex}}You should use pen and paper. \phantom{\rule{0ex}{0ex}}You should not use a calculator. 4{x}^{2} -1 = -8x

Awarded Points: 1

Correct Response: x = \frac{-2±\sqrt{5}}{2}

User Response: x = \frac{-2±\sqrt{5}}{2}

Use the quadratic formula to solve for x. \phantom{\rule{0ex}{0ex}}You should use pen and paper. \phantom{\rule{0ex}{0ex}}You should not use a calculator. {x}^{2} +5 = -5x

Awarded Points: 1

Correct Response: x = \frac{-5±\sqrt{5}}{2}

User Response: x = \frac{-5±\sqrt{5}}{2}

Use the quadratic formula to solve for x. \phantom{\rule{0ex}{0ex}}You should use pen and paper. \phantom{\rule{0ex}{0ex}}You should not use a calculator. {x}^{2} = 3x + 3

Awarded Points: 1

Correct Response: x = \frac{3±\sqrt{21}}{2}

User Response: x = \frac{3±\sqrt{21}}{2}

Use the quadratic formula to solve for x. \phantom{\rule{0ex}{0ex}}You should use pen and paper. \phantom{\rule{0ex}{0ex}}You should not use a calculator. {2x}^{2} - 3x= 1

Awarded Points: 0

Correct Response: x = \frac{3±\sqrt{17}}{4}

User Response: x = \frac{3±\sqrt{19}}{4}

Use the quadratic formula to solve for x. \phantom{\rule{0ex}{0ex}}You should use pen and paper. \phantom{\rule{0ex}{0ex}}You should not use a calculator. {x}^{2} = -x + 1

Responses

Awarded Points: 1

Correct Response: x = \frac{1±\sqrt{13}}{2}

User Response: x = \frac{1±\sqrt{13}}{2}

Awarded Points: 1

Correct Response: x = \frac{-2±\sqrt{5}}{2}

User Response: x = \frac{-2±\sqrt{5}}{2}

Awarded Points: 1

Correct Response: x = \frac{-5±\sqrt{5}}{2}

User Response: x = \frac{-5±\sqrt{5}}{2}

Awarded Points: 1

Correct Response: x = \frac{3±\sqrt{21}}{2}

User Response: x = \frac{3±\sqrt{21}}{2}

Awarded Points: 0

Correct Response: x = \frac{3±\sqrt{17}}{4}

User Response: x = \frac{3±\sqrt{19}}{4}

Awarded Points: 1

Correct Response: x = \frac{-1±\sqrt{5}}{2}

User Response: x = \frac{-1±\sqrt{5}}{2}