Question

sendo a=-6x²y³, b=-7xy⁴ e c=-8x³y², calcule a²-b.c

Answer 1

Explicação passo-a-passo:

${a}^{2} - b \times c \\ ( - 6 {x}^{2} {y}^{3} ( - 7x {y}^{4}) \times ( - 8 {x}^{3} {y}^{2}) \\ 36 {x}^{4} {y}^{6} + 7x {y}^{4} - 8 {x}^{3} {y}^{2} \\ 36 {x}^{4} {y}^{6} - 56 {x}^{4} {y}^{6} \\ - 20 {x}^{4} {y}^{6}$