Write the quadratic equation whose roots are
3
and
6
, and whose leading coefficient is
2
.

Question

Asked 11/18/2014 9:30:14 AM

Updated 12/27/2014 9:04:28 AM

1 Answer/Comment

s

Question

Asked 11/18/2014 9:30:14 AM

Updated 12/27/2014 9:04:28 AM

1 Answer/Comment

Rating

8

the quadratic equation whose roots are 3 and 6 , and whose leading coefficient is 2 is 2x^2 - 18x + 36 = 0

Roots are 3 and 6, then (x - 3)(x - 6) = 0

leading coefficient is 2, then (2x - 6)(x - 6) = 0

2x^2 - 12x - 6x + 36 = 0

2x^2 - 18x + 36 = 0

Roots are 3 and 6, then (x - 3)(x - 6) = 0

leading coefficient is 2, then (2x - 6)(x - 6) = 0

2x^2 - 12x - 6x + 36 = 0

2x^2 - 18x + 36 = 0

Added 12/27/2014 9:04:28 AM

This answer has been confirmed as correct and helpful.

Confirmed by andrewpallarca [12/29/2014 12:15:19 PM]

Write the quadratic equation whose roots are
4
and
5
, and whose leading coefficient is
4
.

Question

Not Answered

Updated 7/12/2015 8:00:57 PM

3 Answers/Comments

the quadratic equation whose roots are 4 and 5 , and whose leading coefficient is 4 is 4x^2 - 36x + 80 = 0.

Roots are 4 and 5: (x - 4)(x - 5) = 0

leading coefficient is 4: (4x - 16)(x - 5) = 0

find the product: 4x^2 - 20x - 16x + 80 =0

simplify the equation: 4x^2 - 36x + 80 = 0

Roots are 4 and 5: (x - 4)(x - 5) = 0

leading coefficient is 4: (4x - 16)(x - 5) = 0

find the product: 4x^2 - 20x - 16x + 80 =0

simplify the equation: 4x^2 - 36x + 80 = 0

Added 12/27/2014 9:01:11 AM

This answer has been confirmed as correct and helpful.

Flagged by jeifunk [7/9/2015 11:39:03 AM], Unflagged by Andrew. [7/13/2015 9:18:23 PM], Confirmed by Andrew. [7/13/2015 9:18:23 PM]

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