Whakaoti i te 7x^3-9x^2+13x-6

$$7 x ^ { 3 } - 9 x ^ { 2 } + 13 x - 6$$

Kimi Pārōnaki e ai ki x

$$21x^{2}-18x+13$$

Ngā Upane e Whakamahi ana i te Ture Pārōnaki mō te Tapeke

Ko te pārōnaki o tētahi pūrau ko te tapeke o ngā pārōnaki o ōna kīanga tau. Ko te pārōnaki o tētahi kīanga tau pūmau ko 0. Ko te pārōnaki o te ax^{n} ko te nax^{n-1}.

$$3\times 7x^{3-1}+2\left(-9\right)x^{2-1}+13x^{1-1}$$

Whakareatia 3 ki te 7.

$$21x^{3-1}+2\left(-9\right)x^{2-1}+13x^{1-1}$$

Tango 1 mai i 3.

$$21x^{2}+2\left(-9\right)x^{2-1}+13x^{1-1}$$

Whakareatia 2 ki te -9.

$$21x^{2}-18x^{2-1}+13x^{1-1}$$

Tango 1 mai i 2.

$$21x^{2}-18x^{1}+13x^{1-1}$$

Tango 1 mai i 1.

$$21x^{2}-18x^{1}+13x^{0}$$

Mō tētahi kupu t, t^{1}=t.

$$21x^{2}-18x+13x^{0}$$

Mō tētahi kupu t mahue te 0, t^{0}=1.

$$21x^{2}-18x+13\times 1$$

Mō tētahi kupu t, t\times 1=t me 1t=t.

$$21x^{2}-18x+13$$

Aromātai

$$7x^{3}-9x^{2}+13x-6$$