The roots are just the zero value of the formula. To find these, we factor:
(x - 2)(x - 2)
(x - 2)^2
to make this into a zero, we set x-2 = 0, then solve for x
x = 2
If x = 2, then the brackets = 0, and those are the roots
The roots are x = 2
Leave a comment if you couldn’t understand, and I’ll try to answer.
The shortest distance from A to B in the diagram is 17 m.
<h3>How to find the shortest distance?</h3>
The shortest distance from D to B can be found as follows:
using Pythagoras theorem,
c² = a² + b²
where
- c is the hypotenuse
- a and b are the other legs
Therefore,
DB² = 15² + 8²
DB² = 225 + 64
DB² = 289
DB = √289
DB = 17 m
learn more on distance here: brainly.com/question/20516334
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