The scale of the model train is 1 inches to 14.5 feet. What is the cars of the model train is 4 inches long. What is the length,
1 answer:
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<h2>Steps:</h2>
So firstly, I will be factoring by grouping. For this, factor x⁶ - 9x⁴ and -x² + 9 separately. Make sure that they have the same quantity on the inside of the parentheses:
Now, you can rewrite the equation as:
However, it's not completely factored. Next, we will apply the formula for the difference of squares, which is . In this case:
Next, we will apply the difference of squares once more with the second factor as such:
<u>The factored form of this equation is: </u>