Datrys d=(t+0.8)(t+1.2)

$$d = ( t + 0.8 ) ( t + 1.2 )$$

Datrys ar gyfer d

$$d=\left(t+0.8\right)\left(t+1.2\right)$$

Camau Ateb

Defnyddio’r briodwedd ddosbarthu i luosi t+0.8 â t+1.2 a chyfuno termau tebyg.

$$d=t^{2}+2t+0.96$$

Datrys ar gyfer t

$$t=-\frac{\sqrt{4d+0.16}}{2}-1$$

$$t=\frac{\sqrt{4d+0.16}}{2}-1\text{, }d\geq -\frac{1}{25}$$