SOLUTION: factor the quadratic expression completely, and find the roots of the expression.
6x^2 - 42x + 72
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Question 36336: factor the quadratic expression completely, and find the roots of the expression.
6x^2 - 42x + 72
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Factor the expression:
First factor out a 6.
Now factor the parentheses.
To find the roots, you must have an "equation". So presumably, you mean this expression to be equal to zero.
Now we can find the roots. Factor as above.
Apply the zero products principle. 6 is not zero, so:
Apply the zero products principle again.
and/or
If then
If then
The roots are:
x = 3
x = 4
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