3 years ago

Find all rational zeros and factor f(x) for x^3 + 2x^2 -45x -126

Mathematics

1 answer:

alexdok [17]3 years ago

6 0

The rational root are x= 7,-3,-6
You can find them by substituting y for 0

You might be interested in

Help me find the total number

il63 [147K]

Answer:

I think it's 44 aren't you adding?

7 0

2 years ago

Read 2 more answers

X, Y, and Z are collinear and Y is between X and Z. If XY = 3x – 1, YZ = 5, and XZ = 5x – 8,

salantis [7]

Answer:

Step-by-step explanation:

XY = 3x – 1, YZ = 5, and XZ = 5x – 8,

We know that XY + YZ = XZ, so

3x - 1 + 5 = 5x - 8

3x + 4 = 5x - 8

3x + 12 = 5x

12 = 2x

6 = x

4 0

2 years ago

PLEASE HELP ASAP

Vlad [161]

Answer:

1 : 6 . . . . or 1/6

Step-by-step explanation:

We know 1 foot is 12 inches, so 5 feet is 5·12 = 60 inches. Zachary's scale factor is ...

drawing size : actual size = 10 inches : 60 inches = 1 : 6

This can also be written as the fraction 1/6.

5 0

3 years ago

Jonas has 40 marbles. He gave 1/5 of the marbles to marvin and 3/8 of the marbles to leroy. How many marbles did each boy get?

MaRussiya [10]

1/5 x 40

= 8 marbles

3/8 x 40

= 15 marbles

5 0

3 years ago

Read 2 more answers

How to simplify this expression??

sdas [7]

Answer :

Step-by-step-explanation :

${x}^{2} + 4x + 5 - {(x + 2)}^{2} \\ {x}^{2} + 4x + 5 - ( {x}^{2} + 4x + 4) \\$

${x}^{2} + 4x + 5 - {x}^{2} - 4x - 4 = {x}^{2} - {x}^{2} + 4x - 4x + 5 - 4 = 5 - 4 = 1$

8 0

3 years ago

Read 2 more answers