Question

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

Answer 1

Answer:

$\boxed{\red{= - 3(5 {m}^{2} + 9 {n}^{2} )}}$

Step-by-step explanation:

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

Answer 2

Answer:

-15m² - 27n²

Step-by-step explanation:

-5(3m² + 7n²) + 8n²

Expand brackets.

-15m² + -35n² + 8n²

Combine like terms.

-15m² + -27n²