Question

What is the product? (2x – 1)(x 4)?

Answer 1

Answer:

$2x^2+7x-4$

Step-by-step explanation:

The distributive says that:

$a \cdot(b+c) = a\cdot b+ a\cdot c$

To find the product of :

$(2x-1)(x+4)$

then;

$2x(x+4)-1(x+4)$

Using distributive property we have;

$2x^2+8x-x-4$

Combine like terms;

$2x^2+7x-4$

Therefore, the product of $(2x-1)(x+4)$ is, $2x^2+7x-4$

Answer 2

Not sure if it is correct, but:

2x2 (2x on level 2) - 7x + 4