mau tanya dong, itu gmn caranya yaaa

persamaan²

x² - 12x + 7 = 0

[tex] \alpha \times \beta [/tex] = c/a
= 7/1 = 7

[tex] \alpha + \beta [/tex] = -b/a
= -(-12/1)
= 12

[tex] \alpha \beta ^2 + \alpha ^2 \beta \\ = \alpha \beta \left ( \alpha + \beta \right ) \\ = 12 \times 7 \\ = 84 [/tex]