Question

how much is +3n^2 -- +n^2

Answer 1

Answer:

= 3² + 2

₁, ₂ .....

= 1

= ₁ ( 1 )

, ₁ = 3(1)² + 2(1) = 3 + 2 = 5

, = 2

₂ = ₁ + ₂ = 3(2)² + 2(2) = 12 + 4 = 16

₁ = 5

∴ ₂ = 16 - 5 = 11

, = 3

₃ = 3(3)² + 2(3) = 27 + 6 = 33

∴ ₃ = 33 - (₁ + ₂) = 33 - 16 = 17

∴ = = 17 - 11 = 11- 5 = 6

∴

= ₁ + (-1)

( ₁ = 5 ; = 6 = )

∴ = 5 + (-1)6

= 5 + 6 - 6

= 6 - 1

Step-by-step explanation:

Answer 2

Answer:

Given:

• 3n² - (n²).

Find:

• Simplify the following.

Calculations:

⇢ 3n² - ( -n²)

⇢ 3n² - 1n²

⇢ 3n² + 1n²

⇢ n²+ n² + n²+ n²

⇢ 4n²

Therefore, 4n² is the required answer.