What are the roots of the function? f(x) =x^2 + 2x

Mariomulansky asked Feb 23, 2022

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What are the roots of the function?
f(x) =x^2 + 2x – 80

Mariomulansky asked Feb 23, 2022

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23 votes

Answer:

x^2+2x-8= x^2+10x-8x-80 =x(x+10)-8(x+10)

=( x-8) (x+10)

therefore x= 8 or x=-10

Hoijof answered Feb 27, 2022

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