<h2>
Part a) </h2><h2>
Explain the error in this simplification.</h2>
Given the simplified expression
<u><em>Identifying the Main Error</em></u>
← ERROR Starts here
<u><em>Here is the Explanation of the Error </em></u>
<u><em /></u>
<u><em /></u>
<em>. </em>In your case you wrongly multiply the equation.
<em><u>CORRECTION</u></em>
<em>HERE IS HOW YOU SHOULD HAVE MULTIPLIED BY </em><em>LCM = (x-2)(x+2):</em>
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<h2>
Part b) </h2><h2>
Show your work as you correct the error</h2>
Here is the complete correction of the error.
Considering the expression
Answer:
The discrimant of this equation is 144.
Step-by-step explanation:
First you have to move all the variables to one side to make the equation/expression into 0 by substracting 8x² to both sides :
9x² + 14x + 13 = 8x²
9x² + 14x + 13 - 8x² = 8x² - 8x²
x² + 14x + 13 = 0
It is given that the formula of discriminant is, D = b² - 4ac where a&b&c represent the number of the equation, ax²+bx+c = 0 :
x² + 14x + 13 = 0
D = b² - 4ac
= 14² - 4(1)(13)
= 196 - 52
= 144
Answer:
Step-by-step explanation:
No, because the lines are in the same plane.
Answer: 585 miles
Step-by-step explanation: 60 x 7 for the first 7 hours = 420 miles, then 3 x 55 for the last 3 hours = 165 add them together, 420+265 you get= <u>585</u>
