Quadratic equations: Solving quadratic equations
The quadratic formula 1
Drag the steps to solve the equation below by means of the quadratic formula in the correct order.
\[-3\cdot q=-4\cdot q^2+9\]
The centre column shows the steps in words, and the right column shows the equation after the step is applied.
\[-3\cdot q=-4\cdot q^2+9\]
The centre column shows the steps in words, and the right column shows the equation after the step is applied.
- step 1
- step 2
- step 3
- step 4
- step 5
- calculate discriminant
- determine #a#, #b# and #c#
- reduce to #0#
- determine number of solutions
- determine solutions
- #D=153#
- #4\cdot q^2-3\cdot q-9=0#
- #a=4#, #b=-3# and #c=-9#
- #D \gt 0#, hence, there are #2# solutions
- #q={{3-3\cdot \sqrt{17}}\over{8}} \lor q={{3\cdot \sqrt{17}+3}\over{8}}#
Unlock full access
Teacher access
Request a demo account. We will help you get started with our digital learning environment.
