Question

(12a-9) (12a +9) solve with equation ​

Answer 1

Answer:

Here is your answer-

(Taking a = x)

$(12x - 9)(12x + 9) \\ = > 12x(12x + 9) - 9(12x + 9) \\ = > (144 {x}^{2} + 108x) - (108x + 81) \\ = > 144 {x}^{2} + 108x - 108x + 81 \\ 144 {x}^{2} + 81$

Hope it helps!

Answer 2

In accordance with the information provided in the question,

We have found the value of the supplied expression in the above question.

Given the information $(12a-9) (12a+9)$

As the given equation is in form of

So, for finding the value of the expression we will first multiply "a" with "c" and "d" and then multiply "b" with "c" and "d", and then add the resultant value.

So, value of expression we will be

So, applying the above condition in given question,

We will get,

$\Rightarrow (12a-9)(12a+9)\\\\Rightarrow 144a^{2} +108a-108a-81\\\Rightarrow 144a^{2} -81$

Hence the required solution is $144a^{2} -81$.