christeenalal2007 christeenalal2007

04-07-2020
Mathematics

contestada

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

Respuesta :

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

SOME ONE PLS HELP ME THIS IS URGENT According to the image below, which season is about to begin in the southern hemisphere? Image shows Earth tilted 23.5 degr

What is a substance used to decrease the rate of a chemical reaction

Complete the square for 3x2 - 12x = 9.

Which expression is a sum of cubes?

Question 9 (7 points) Adam borrows $6000 for two years at an 8% annual interest rate, what is his monthly payment? A. $250 D. $522 B. $271 C.$290 E. None of the

someone explain and help plsss

A 2-kg mass attached to a spring that is compressed 40 cm has a maximum velocity of 10 m/s. If the spring is then compressed by 50 cm, what is the speed when th

Feudal barons, tired of abuses by the king, sat down with King John to craft a written agreement. What did the barons declare?

For Sophia's graduation party, several tables of the same width will be arranged end to end to form a serving table with atotal area of 75 ft. The total length

solve the system of equation by guess jordan method 2x1-6x2-2x3=14, 3x1+4x2-7x3= 16, 3x1-6x2+9x3=21