abbiaugust12345 abbiaugust12345
  • 21-07-2020
  • Mathematics
contestada

simplify -5(3m2 + 7n2) + 8n2

Respuesta :

09pqr4sT
09pqr4sT 09pqr4sT
  • 21-07-2020

Answer:

-15m² - 27n²

Step-by-step explanation:

-5(3m² + 7n²) + 8n²

Expand brackets.

-15m² + -35n² + 8n²

Combine like terms.

-15m² + -27n²

Answer Link
Hi1315
Hi1315 Hi1315
  • 21-07-2020

Answer:

[tex]\boxed{\red{= - 3(5 {m}^{2} + 9 {n}^{2} )}}[/tex]

Step-by-step explanation:

[tex] - 5(3 {m}^{2} + 7 {n}^{2} ) + 8 {n}^{2} \\ - 15 {m}^{2} - 35 {n}^{2} + 8 {n}^{2} \\ = - 15 {m}^{2} - 27 {n}^{2} \\ = - 3(5 {m}^{2} + 9 {n}^{2} )[/tex]

Answer Link

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