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What is (6x4 - 7x3 - 153x2 + 175x + 75) divided by (x + 5)?

a.2x3 - 3x2 - 50x - 75
b.3x3 + x2 - 75x - 25
c.6x2 - 7x - 3
d.6x3 - 37x2 + 32x + 15?

User Azalut
by
8.3k points

2 Answers

1 vote

Answer:

d.6x3 - 37x2 + 32x + 15?

Explanation:

Took the test last year.

User Leontalbot
by
8.1k points
3 votes

Hey there!!!

( 6x⁴ - 7x³n - 153x² + 175x + 75 ) ÷ ( x + 5 )

If we multiply ( x + 5 ) with ( 6x³ ) . We get 6x⁴ + 30x³ . Now we need to subtract this equation from the above equation.

-37x³ - 153x² + 175x + 75

Now multiply ( x + 5 ) with ( -37x² ) . We get ( -37x³ - 185x² ) . Subtracting this from the above equation, we get ,

32x² + 175x + 75

Multiply ( x + 5 ) with ( 32x ) . We get ( 32x² + 160x ) . Now subtract this from the above equation. We get,

15x + 75

Now multiply ( x + 5 ) with ( 15 ) . we get ( 15x + 75 ). Now subtract this from the above equation, we get,

0

The answer would be all the bold letters.

Answer : - ( 6x³ - 37x² + 32x + 15 )

Option ( d )

Hope helps!

User Fpdragon
by
8.4k points

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