asked 93.4k views
3 votes
What is the quotient (125 – 8x3) ÷ (25 + 10x + 4x2)?

–2x + 5
2x – 5
–2x – 5
2x + 5

asked
User WJS
by
7.9k points

2 Answers

2 votes
If you would like to solve (125 - 8x^3) / (25 + 10x + 4x^2), you can do this using the following steps:

(125 - 8x^3) / (25 + 10x + 4x^2) = - ((2x - 5) * (4x^2 + 10x + 25)) / (4x^2 + 10x + 25) = - (2x - 5) = - 2x + 5

The correct result would be - 2x + 5.
answered
User Timothyqiu
by
8.7k points
5 votes

For this case we have the following expression:


(125-8x^3)/(25+10x+4x^2)

Factoring the numerator we have:


(-(2x+5)(4x^2+10x+25))/(25+10x+4x^2)

Rewriting the denominator we have:


(-(2x+5)(4x^2+10x+25))/(4x^2+10x+25)

Canceling similar terms we have:


-(2x+5)


-2x-5

Answer:

The quotient of the division is given by:


-2x-5

answered
User Roberto Nunes
by
8.3k points
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