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Mathematics
Haley Wiggins
13 September, 20:43
F (x) = x^3+x^2-42x what are the zeros
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Monique Strong
13 September, 22:18
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F (x) = x^3+x^2-42x
Roots
Solve for x over the real numbers
x³+x²-42x=0
Factor the left-hand side
The left-hand side factors into a product with three terms
x (x-6) (x+7) = 0
Find the roots of each term separately
Split into three equations
x-6=0 x=0 x+7=0
Look at the first equation and solve for x
Add 6 to both sides
x=6 x=0 x+7=0
Look at the third equation and solve for x
Subtract 7 from both sides
Answer:
x=6 x=0 x=-7
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