Question

2 x ao quadrado menos 7x - 15 = 0 valor de Delta

Answer 1

Delta = 7^2 - 4.(2).(-15)
Delta = 49+ 120
Delta = 169

Answer 2

• Cálculo Abaixo:

$\boxed{\begin{array}{lr} \\ \large \sf \: \Delta = {b}^{2} - 4ac \\ \\\large \sf \: \Delta = {( - 7)}^{2} - 4 \cdot 2\cdot - 15 \\ \\ \large \sf \:\Delta = 49 + 120 \\ \\ \boxed{ \blue{\large \sf \:\Delta = 169 }}\\ \: \end{array}}$

➡️ Resposta:

• $\boxed{\large \sf \Delta= 169}$