Datrys ar gyfer L
L=24-7x-6x^{2}
Datrys ar gyfer x (complex solution)
x=\frac{\sqrt{625-24L}-7}{12}
x=\frac{-\sqrt{625-24L}-7}{12}
Datrys ar gyfer x
x=\frac{\sqrt{625-24L}-7}{12}
x=\frac{-\sqrt{625-24L}-7}{12}\text{, }L\leq \frac{625}{24}
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L=4x^{2}-12x+9-5\left(2x-3\right)\left(x+1\right)
Defnyddio'r theorem binomaidd \left(a-b\right)^{2}=a^{2}-2ab+b^{2} i ehangu'r \left(2x-3\right)^{2}.
L=4x^{2}-12x+9+\left(-10x+15\right)\left(x+1\right)
Defnyddio’r briodwedd ddosbarthu i luosi -5 â 2x-3.
L=4x^{2}-12x+9-10x^{2}+5x+15
Defnyddio’r briodwedd ddosbarthu i luosi -10x+15 â x+1 a chyfuno termau tebyg.
L=-6x^{2}-12x+9+5x+15
Cyfuno 4x^{2} a -10x^{2} i gael -6x^{2}.
L=-6x^{2}-7x+9+15
Cyfuno -12x a 5x i gael -7x.
L=-6x^{2}-7x+24
Adio 9 a 15 i gael 24.
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