Respuesta :

Answer:

-3y2-8+5y2-1=

2y2-9

Step-by-step explanation:

Answer:

[tex]\huge{\boxed{\sf{ 2y^{2} - 9 }}}[/tex]

Step-by-step explanation:

[tex]( - 3y^{2} - 8 ) - ( - 5y^{2}+ 1 )[/tex]

While subtracting , sign of each term of the second expression changes.

⇒[tex]- 3y^{2} - 8 + 5y^{2} - 1[/tex]

Combine like terms : [tex]-3y^{2}[/tex] and [tex]5y^{2}[/tex]

Like terms are those which have the same base.

⇒[tex]2y^{2} - 8 - 1[/tex]

Remember : The negative integers are always added but posses the negative ( - ) sign.

⇒[tex]2y^{2} - 9[/tex]

Hope I helped!

Best regards !

-[tex]\sf{ TheAnimeGirl}[/tex]