christeenalal2007 christeenalal2007
  • 04-07-2020
  • Mathematics
contestada

Using a suitable identity solve the following (7a-9b)(7a-9b)

Respuesta :

RVADAMARAJANCHITHRA
RVADAMARAJANCHITHRA RVADAMARAJANCHITHRA
  • 04-07-2020

Answer:

49a^2 - 126ab + 81 ^2

Step-by-step explanation:

Suitable identity = (a-b)(a-b) = a^2 - 2ab + b^2

So, to solve this.

(7a-9b)(7a-9b) = 49a^2 - 126ab + 81b^2

Hope this helps

Answer Link

Otras preguntas

45-8÷(4-2)×9+10 how do you do this
Help on 9???????????????plz
Are there environmenral or health factors that can cause lung cancer
I need an answer and explanation for question 4 thanks!
Apple Final Cut Pro is a digital video editing program that is available for Macs with OS X version 10.4 or later t or f
Calculate the concentrations of h2so3, hso−3, so2−3, h3o+ and oh− in 0.025 m h2so3.
Translate the sentence into an equation. The difference of a number divided by 3 and 5 is equal to 2 . Use the variable w for the unknown number.
Someone who enjoys chemistry i need help with an online class
On what basis are metamorphic rocks classified
What do the following lines mean? Time is our tedious Song should here have ending; Heav'n's youngest-teemed 42 Star Hath fixt her polisht Car, Her sleepi