How do you solve x^2+7x+10>0 using a sign chart?

1 Answer
Shwetank Mauria
Oct 1, 2016

x<-5 or x>-2

Explanation:

Just see https://socratic.org/questions/how-do-you-solve-x-3-7x-2-10x-0

and try on similar lines

we have

Sign Chart

color(white)(XXXXXXXXXXX)-5color(white)(XXXXX)-2

(x+5)color(white)(XXXX)-ive color(white)(XXXX)+ive color(white)(XX)+ive

(x+2)color(white)(XXXX)-ive color(white)(XXXX)-ive color(white)(XX)+ive

(x+5)(x+2)
color(white)(XXXXXXXX)+ive color(white)(XXXX)-ive color(white)(XX)+ive

x^2+7x+10>0 when x<-5 or x > -2

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