Hello there!
To find the zeroes or the roots of a function, you just need to set the function equal to 0 then solve for x
f(x) = 2x² - 8x - 10
Set function equal to 0
2x² - 8x - 10 = 0
Now we can factorize the left side
2(x + 1)(x - 5) = 0
Then set factors equal to 0
x + 1 = 0 or x - 5 = 0
x = 0 - 1 or x = 0 + 5
x = -1 or x = 5
Thus,
The roots are -1 and 5
Let me know if you have any questions. As always, it is my pleasure to help students like you~!
5 rows x 4 in each = 20 chairs in the classroom
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If you still need the answer I think it's B
Step-by-step explanation:
Four thousandths is how you say and write it in words
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~ Well congruent means that all sides and angles are equal, so if sides aren’t congruent it means they are not the same size, angle or sides.