DestinyKiara99 DestinyKiara99

21-11-2015
Mathematics

contestada

Solve x^2 + 6x = 24.
a. −3 ± square root 21
b. −3 ± square root 34
c. −3 ± square root 15
d. −3 ± square root 33

Respuesta :

klhenriqueleal klhenriqueleal

21-11-2015

Hello DestinyKiara99 o/
We can solve this equation using the quadratic formula
Check it out...

x² + 6x - 24 = 0

Δ = 6² - 4.1.(-24)
Δ = 36 + 96
Δ = 132

x = -6 +/- √132 x' = -3 + √33
-------------- /
2 \
x'' = - 3 - √33
The correct answer is the letter D
I hope this help =)

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