lexiitouch lexiitouch

22-03-2020
Mathematics

contestada

Solve the equation for all real solutions.
9x^2+30x+25= 0

Respuesta :

jimrgrant1 jimrgrant1

22-03-2020

Answer:

x = - [tex]\frac{5}{3}[/tex]

Step-by-step explanation:

Given

9x² + 30x + 25 = 0 ← left side is a perfect square

(3x + 5)² = 0, thus

3x + 5 = 0 ⇒ 3x = - 5 ⇒ x = - [tex]\frac{5}{3}[/tex]

solution is x = - [tex]\frac{5}{3}[/tex] with multiplicity 2

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