aliya50lexa aliya50lexa

23-02-2020
Mathematics

contestada

2a² - a - 13 =2 I want to see the steps how its done

Respuesta :

autumhammett200 autumhammett200

23-02-2020

Answer:

Step-by-step explanation:

2a^-a-13=2

Subtract 2 from both sides :

2a^2-a-13=2=2-2

2a^2-a-15=0

Factor left side of the equation :

(2a+5) (a-3)=0

Set factors equal to 0 :

2a+5=0 or a-3=0

a=-5/2 or a=3

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