naynaluquin0410 naynaluquin0410
  • 15-12-2021
  • Mathematics
contestada

Simplify.
ws
(-2i)(2 – 7i)
[?]+[li

Please help

Simplify ws 2i2 7i li Please help class=

Respuesta :

19nboli
19nboli 19nboli
  • 15-12-2021

Answer:

-14-4i or 14+4i

Step-by-step explanation:

hope u get your answer please mark as brainliest if correct thank you

Answer Link
Аноним Аноним
  • 15-12-2021

Answer:

[tex]\boxed{\sf -14-4i}[/tex]

Step-by-step explanation:

[tex]\sf (-2i)(2-7i)[/tex]

Multiply -2i * 2-7i:-

[tex]\sf -2i\times 2-2(-7)i^2[/tex]

i^2 is -1

[tex]\sf -2i\times 2-2(-7)(-1)[/tex]

Now, do the multiplications.

Reorder the terms.

[tex]\sf -14-4i[/tex]

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