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adell [148]
3 years ago
7

I need help seeing what I did wrong

Mathematics
1 answer:
Makovka662 [10]3 years ago
8 0

Answer:  The two roots are x = 3/2 and x = -2

=========================================================

Explanation:

You have the right idea so far. But the two numbers should be 3 and -4 since

  • 3*(-4) = -12
  • 3+(-4) = -1

The -1 being the coefficient of the x term.

This means you need to change the -3x and 4x to 3x and -4x respectively. The other inner boxes are correct.

---------

Refer to the diagram below to see one way to fill out the box method, and that helps determine the factorization.

If we place a 2x to the left of -2x^2, then we need an -x up top because 2x*(-x) = -2x^2

Then based on that outer 2x, we need a -2 up top over the -4x. That way we get 2x*(-2) = -4x

So we have the factor -x-2 along the top

The last thing missing is the -3 to the left of 3x. Note how -3*(-x) = 3x in the left corner and -3*(-2) = 6 in the lower right corner.

We have the factor 2x-3 along the left side.

---------

The two factors are (2x-3) and (-x-2) which leads to the factorization (x+3)(-x+2)

The last thing to do is set each factor equal to 0 and solve for x

  • 2x-3 = 0 solves to x = 3/2 = 1.5
  • -x-2 = 0 solves to x = -2

The two roots are x = 3/2 and x = -2

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Answer:

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Step-by-step explanation:

Step 1: We have formula to find the slope if we are given two point.

<h3>slope = \frac{(y2 - y1)}{(x2 - x1)}</h3>

Given points (-1, -5) and (5, 4)

Here x1 = -1, y1 = -5 and x2=5 and y2 = 4

Step 2: Plug in those values into formula and simplify.

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Thank you.

Hope you will understand this.

4 0
3 years ago
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