Question

x²-7=0 ayuden por favor​

Answer 1

$\bf \orange{ {x}^{2} - 7 = 0 } \\ \bf\orange{a = 1 \: \: \: \: \: \: b = 0 \: \: \: \: \: c = - 7} \\ \bf\orange{ {0}^{2} - 4 \times 1 \times ( - 7)} \\ \bf\orange{28}$