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13.ERROR ANALYSIS Describe and correct the error in the student's reasoning.
1 answer:
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Answer:
10m
Step-by-step explanation:
We can set up an equation to solve this.
This equation can be created since we are given two similar sides of both triangles.
Now, cross multiply and simplify to solve for .
The answer is sensible, and if you put 10 into the same equation from earlier, you will see that it is accurate.
Therefore, the value of is 10m.
X method is the method to find the factors of the polynomial equation.The factor of the given polynomial is,
Thus the option 3 is the correct option,
<h3>How to find factor of polynomial using X method?</h3>X method is the method to find the factors of the polynomial equation.
The standard form of the quadratic equitation is given as,
Given information-
The equation given in the problem is,
Compare the above equation with the standard form. We get,
To find out the factor of above equation using X method, follow the steps.
- Step 1) Multiply
and
and place
at the top of X as shown in the image.
- Step 2) Place
at the bottom as shown in the image below.
- Step 3) Find two numbers that multiply the top number
- Step 4) Write the polynomial from the X box as,
Hence the factor of the given polynomial is,
Thus the option 3 is the correct option,
Learn more about the X method here;
