Solve for Δ
\Delta =-92
Assign Δ
\Delta ≔-92
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\Delta =484-4\left(-2\right)\left(-72\right)
Calculate 22 to the power of 2 and get 484.
\Delta =484-\left(-8\left(-72\right)\right)
Multiply 4 and -2 to get -8.
\Delta =484-576
Multiply -8 and -72 to get 576.
\Delta =-92
Subtract 576 from 484 to get -92.
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