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2 years ago

Simplify (x+3)(x-1) - x(x+2)

Mathematics

2 answers:

SOVA2 [1]2 years ago

4 0

Answer:

-3

Step-by-step explanation:

(x+3)(x-1) - x(x+2)

Foil the first term

First x^2

outer -x

inner 3x

last -3

Add them together

x^2 -x+3x-3 = x^2 +2x-3

x^2 +2x-3 - x(x+2)

Distribute the second term

x^2 +2x-3 -x^2 -2x

Combine like terms

-3

True [87]2 years ago

4 0

Answer:

$\boxed{-3}$

Step-by-step explanation:

<em>Hey there!</em>

Well to simplify,

(x+3)(x-1) - x(x+2)

we need to do

(x+3)(x-1) first,

(x+3)(x-1)

x*x = x^2

-x + 3x = 2x

-1 * 3 = -3

$\boxed{x^2 + 2x - 3}$

Now we can do,

x(x+2)

x*x = x^2

x*2 = 2x

$\boxed{x^2 + 2x}$

So now we need to subtract the 2 products,

x^2 - x^2 = 0

2x - 2x = 0

The answer is,

$\boxed{-3}$

<em>Hope this helps :)</em>

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