Question

2x(x+6)-3x(4x) при x=-0,5​

Answer 1

Пошаговое объяснение:

2х(x+6)-3x(4x)=

=2x²+12x-12x²=

=12x-10x²=

=-6+25=

=21

Answer 2

To evaluate the expression $2x(x+6) - 3x(4x)$ at $x = -0.5$, we'll substitute $-0.5$ for $x$ and calculate the result step by step:

$2(-0.5)(-0.5 + 6) - 3(-0.5)(4 \times -0.5)$

First, simplify the expressions inside the parentheses and perform the multiplications:

$= 2(-0.5)(5.5) - 3(-0.5)(-2)$ $= -5.5 - 3(-1)$ $= -5.5 + 3$ $= -2.5$

So, $2x(x+6) - 3x(4x)$ evaluated at $x = -0.5$ is $-2.5$.