2x^2 + x + 3=0 has only complex roots.
The determinant is 1-4*2*3 = -23
-23 (or any determinant) is the part under the square root sign, If that determinant is negative, knowing you cannot take the square root of a negative number, we know the answers must be complex.
Well you are trying to find x, so you would divide 5/8 by itself and on the other side.
(5/8x / 5/8) = (10 / 5/8)
x=16
Hope this helps!
Answer:
(4,-2)
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Answer:
if youre traveling 10 miles per hour then 8 hours would multiply 8 · 10 = 80 thus telling us that it would take us 8 hours to travel 80 miles. its basic math tbh...
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Answer:
20
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