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Readme [11.4K]
3 years ago
6

What is the quotient in simplified form? State any restrictions on the variable. Show Work.

Mathematics
2 answers:
photoshop1234 [79]3 years ago
5 0
    a+2           a +1
= -------  / ------------------
    a -5      (a - 3)(a - 5)

    a+2           (a - 3)(a - 5)
= -------  *  ------------------
    a -5              a +1

    (a+2)(a - 3)
= ----------------
        a +1

a NOT equal 5 and -1
Sedaia [141]3 years ago
3 0

Answer:

\frac{(a+2)}{(a-5)} /\frac{(a+1)}{(a^2-8a+15)}=\frac{a^2-a-6}{a+1}

Restriction:

a\neq -1

a\neq 5

Step-by-step explanation:

we are given

\frac{(a+2)}{(a-5)} /\frac{(a+1)}{(a^2-8a+15)}

Since, it is division

so, we can flip it to get in multiplication

\frac{(a+2)}{(a-5)} /\frac{(a+1)}{(a^2-8a+15)}=\frac{(a+2)\times (a^2-8a+15)}{(a-5)\times (a+1)}

now, we can factor it

and then we can simplify it

a^2-8a+15=(a-5)(a-3)

\frac{(a+2)}{(a-5)} /\frac{(a+1)}{(a^2-8a+15)}=\frac{(a+2)\times (a-5)\times (a-3)}{(a-5)\times (a+1)}

now, we can cancel it

\frac{(a+2)}{(a-5)} /\frac{(a+1)}{(a^2-8a+15)}=\frac{(a+2)\times (a-3)}{(a+1)}

\frac{(a+2)}{(a-5)} /\frac{(a+1)}{(a^2-8a+15)}=\frac{a^2-a-6}{a+1}

Restriction:

we know that denominator can not be zero

so,

a+1\neq 0

a\neq -1

and factored term can not be 0 as well

a-5\neq 0

a\neq 5

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