Question

3x(x-4)+(x-3)(x+3)=​

Answer 1

Ответ:

4х²-12х-9

Объяснение:

3x(x-4)+(x-3)(x+3)=​3х²-12х+(х²-9)=4х²-12х-9

Answer 2

Let's solve the equation step by step:

Given equation: $3x(x-4)+(x-3)(x+3)$

First, let's simplify the expressions within the parentheses:

$x(x-4) = x^2 - 4x$ $(x-3)(x+3) = x^2 - 9$

Now substitute these simplified expressions back into the original equation:

$3x(x-4) + (x-3)(x+3) = 3x(x^2 - 4x) + (x^2 - 9)$

Distribute the terms inside the parentheses:

$3x^3 - 12x^2 + x^2 - 9$

Combine the like terms:

$3x^3 - 11x^2 - 9$

So, the simplified expression of the given equation is $3x^3 - 11x^2 - 9$.