$Use:(a-b)^2=a^2-2ab+b^2\\-------------------------------\\\\(9-6i)^2=9^2-2\cdot9\cdot6i+(6i)^2=81-108i+36i^2\\\\=81-108i+36(-1)=81-108i-36=45-108i\\\\-------------------------------\\\\i=\sqrt{-1}\to i^2=1$

7 0

3 years ago

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Factorize 27a³-b³-1-9ab

victus00 [196]

Answer:

Hope this helps!

Please see through the steps below

7 0

3 years ago

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Solve. x/ 2 − 8 = x/ 5 + 2

cupoosta [38]

Answer:

x 100/3

Step-by-step explanation:

5 0

3 years ago

Solve the following equation for x: 2(5x+6)+3x=38

gregori [183]

Answer:

x=2

Hope this helps! Have a good day! :)

4 0

3 years ago