alexandraavalos alexandraavalos
  • 08-11-2017
  • Mathematics
contestada

Find the product mentally.

(z - 12)(z + 12)

z2 - 144
z2 - 24z - 144
z2 + 144

Respuesta :

maricruzriveraor4vvu
maricruzriveraor4vvu maricruzriveraor4vvu
  • 08-11-2017
the answer should be z2-144
Answer Link
slicergiza slicergiza
  • 09-09-2019

Answer:

[tex]z^2-144[/tex]

Step-by-step explanation:

Here the given expression,

[tex](z-12)(z+12)[/tex]

∵ By using the algebraic property,

[tex](a+b)(a-b)=a^2-b^2[/tex]

We get,

[tex](z-12)(z+12)=(z)^2 - (12)^2[/tex]

[tex]\implies (z-12)(z+12)=z^2-144[/tex]

Which is the required product.

Therefore, FIRST option is correct.

Answer Link

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