Datrys 2.4x^2+1-2x2^n+1

$$2.4 x ^ { 2 } + 1 - 2 x 2 ^ { n + 1 }$$

Gwahaniaethu w.r.t. x

$$-4\times 2^{n}+\frac{24x}{5}$$

Camau gan Ddefnyddio Rheol Deilliadol ar gyfer Swm

Deilliad polynomaial yw swm deilliadau ei dermau. Deilliad term cyson yw 0. Y deilliad o ax^{n} yw nax^{n-1}.

$$2\times 2.4x^{2-1}+\left(-2\times 2^{n+1}\right)x^{1-1}$$

Lluoswch 2 â 2.4.

$$4.8x^{2-1}+\left(-2\times 2^{n+1}\right)x^{1-1}$$

Tynnu 1 o 2.

$$4.8x^{1}+\left(-2\times 2^{n+1}\right)x^{1-1}$$

Tynnu 1 o 1.

$$4.8x^{1}+\left(-4\times 2^{n}\right)x^{0}$$

Ar gyfer unrhyw derm t, t^{1}=t.

$$4.8x+\left(-4\times 2^{n}\right)x^{0}$$

Ar gyfer unrhyw derm t ac eithrio 0, t^{0}=1.

$$4.8x+\left(-4\times 2^{n}\right)\times 1$$

Ar gyfer unrhyw derm t, t\times 1=t a 1t=t.

$$4.8x-4\times 2^{n}$$

Enrhifo

$$-4x\times 2^{n}+\frac{12x^{2}}{5}+1$$