What is the middle term of the product of (5a - 7)(2a - 1)?
Question
Updated 11/1/2014 4:13:34 AM
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Original conversation
User: What is the middle term of the product of (5a - 7)(2a - 1)?

Weegy: (5a - 7)(2a - 1)

= 10a^2 - 5a - 14a + 7;

= 10a^2 - 19a + 9;

The middle term is: -19a

User: Factor 5x 2 - 7x + 2.

User: Factor 2x 2 + 7x + 3.

User: Find the length and width of a rectangle with an area of 2x 2 + x - 3.

Weegy: 8x^2 - 2x = 1;
8x^2 - 2x - 1= 0;
(4x + 1)(2x - 1) = 0
(4x + 1) = 0; 4x = -1, x = -1/4 or (2x - 1) = 0; 2x = 1; x = 1/2

Solution set: {x = -1/4, x = 1/2}

User: What is the product of (4x + 3)(-2x - 5)?

Question
Updated 11/1/2014 4:13:34 AM
This conversation has been flagged as incorrect.
Rating
8
5x^2 - 7x + 2
= 5x^2 - 2x - 5x + 2
= (5x - 2)(x - 1)
Confirmed by andrewpallarca [11/1/2014 4:38:05 AM], Rated good by andrewpallarca
8
2x^2 + 7x + 3
= 2x^2 + x + 6x + 3
= (2x + 1)(x + 3)
Confirmed by andrewpallarca [11/1/2014 4:39:21 AM], Rated good by andrewpallarca
8
The length and width of a rectangle with an area of 2x^2 + x - 3 is 2x + 3 and x - 1 .
2x^2 + x - 3
= (2x + 3)(x - 1)
2x + 3 is the length ,x - 1 is the width
Confirmed by andrewpallarca [11/1/2014 4:39:47 AM], Rated good by andrewpallarca
8
(4x + 3)(-2x - 5)
= 4x*(-2x ) - 2x*3 + 4x*(-5) + 3*(-5)
= -8x^2 - 6x - 20x - 15
= -8x^2 - 26x - 15
Confirmed by andrewpallarca [11/1/2014 4:40:39 AM], Rated good by andrewpallarca

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