Question

(3m? + 2m - 7) - (-8m² - 4m + 1)​

Answer 1

• Solution :

→ (3m² + 2m - 7) - (- 8m² - 4m + 1)

→ 3m² + 2m - 7 + 8m² + 4m - 1

→ 3m² + 8m² + 2m + 4m - 7 - 1

→ 11m² + 6m - 8

Answer 2

Step-by-step explanation:

$\huge{\underline{\underline{Given→}}}$

• $\sf\green{Equation\:1=(3m^2+2m-7)}$
• $\sf\green{Equation\:2=(-8m^2-4m+1)}$

$\huge{\underline{\underline{To\:Find→}}}$

$\sf\blue{→(3m^2+2m-7)-(-8m^2-4m+1)}$

$\huge{\underline{\underline{Answer→}}}$

$(3{m}^{2}+2m - 7)-(-8{m}^{2}-4m+1 \\ = (3 {m}^{2} - - 8 {m}^{2}) + (2m - - 4m) + ( - 7 - 1) \\ = (3 {m}^{2} + 8 {m}^{2}) + (2m + 4m) + ( - 8) \\ = 11 {m}^{2} + 6m - 8$

$\sf{\boxed{\boxed{\red{→11m^2+6m-8✔}}}}$

HOPE IT HELPS.