Solve b ) a(a + 2) - (a + 2) | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$a ( a + 2 ) - 1 ( a + 2 )$$

Evaluate

$\left(a-1\right)\left(a+2\right)$

Solution Steps

Use the distributive property to multiply $a$ by $a+2$.

$$a^{2}+2a-\left(a+2\right)$$

To find the opposite of $a+2$, find the opposite of each term.

$$a^{2}+2a-a-2$$

Combine $2a$ and $-a$ to get $a$.

$$a^{2}+a-2$$

Expand

$a^{2}+a-2$

Solution Steps

Use the distributive property to multiply $a$ by $a+2$.

$$a^{2}+2a-\left(a+2\right)$$

To find the opposite of $a+2$, find the opposite of each term.

$$a^{2}+2a-a-2$$

Combine $2a$ and $-a$ to get $a$.

$$a^{2}+a-2$$