Question

(2m -3)^2 pls answer fast

Answer 1

4m^2-12m+9

Explanation:

`(2m -3)^2`

`\mathrm{Apply\:Perfect\:Square\:Formula}:\quad \left(a-b\right)^2=a^2-2ab+b^2`

`\left(2m-3\right)^2=\left(2m\right)^2-2\cdot \:2m\cdot \:3+3^2`

`=\left(2m\right)^2-2\cdot \:2m\cdot \:3+3^2`

`\mathrm{Simplify}`

`=4m^2-12m+9`

~Learn with Lenvy~

Answer 2

`\bf \longrightarrow \: ( {2m - 3)}^(2)`

Using Identity

• 
  `\bf \longrightarrow \:(a - b) {}^(2) = { a}^(2) + {b}^(2) - 2ab`

Let,

a = 2m

b = 3

Now

`\sf \longrightarrow \:(2m) {}^(2) + {3}^(2) - 2(2m * 3) \\ \\ \\ \sf \longrightarrow \:4 {m}^(2) + 9 \: - 2(6m) \\ \\ \\ \sf \longrightarrow \:4 {m}^(2) + 9 \: - 12m`

Therefore,

• Your answer is 4m² + 9 - 12m .