ranjushrestha1122 ranjushrestha1122

23-03-2021
Mathematics

contestada

If m = (3x-1) and n = (3x+1),sjow that x² = mn+1 by 9

Respuesta :

abidemiokin abidemiokin

28-03-2021

Answer:

See proof below

Step-by-step explanation:

Given that m = (3x-1) and n = (3x+1)

Taking the product

mn = (3x-1)(3x+1)

mn = 9x^2+3x-3x-1

mn = 9x^2 - 1

mn+1 = (9x^2-1+1)

mn+1 = 9x^2

Dividing both sides by 9

(mn+1)/9 = (9x^2)/9

(mn+1)/9 = x^2

Swap

x^2 = (mn+1)/9

This shows the required proof

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