Question

Expand the following expression (x + 2)(x² – 3x - 1)

Answer 1

Answer:

$x^{3} - x^{2} - 7x -2$

Step-by-step explanation:

Give me brainllest

Answer 2

Answer:

${x}^{3} - {x}^{2} - 7x - 2$

Step-by-step explanation:

$(x + 2)( {x}^{2} - 3x - 1)$

Multiply the first term.

$x \times {x}^{2} = {x}^{3}$

Multiply x by everything on the right, dont do x squared we already done that.

$x \times - 3x = - 3 {x}^{2}$

$x \times - 1 = - x$

Multiply 2 by everything on the left expect -1. ( that our next step).

$2 \times {x}^{2} = 2 {x}^{2}$

$2 \times - 3x = - 6x$

Multiply the last term, 2 and -1.

$2 \times - 1 = - 2$

Add like with like.

${x}^{3} - {x}^{2} - 7x - 2$