FleurB268347 FleurB268347
  • 25-10-2022
  • Mathematics
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This is solving equations with product and sum I already did the question a) but I’m having trouble with b)

This is solving equations with product and sum I already did the question a but Im having trouble with b class=

Respuesta :

AnjelicaS68398 AnjelicaS68398
  • 25-10-2022

b)

Answer:

Explanation:

The given quadratic equation is

a^2 - 121 = 0

It can be written as

a^2 + 0a - 121 = 0

The terms to be added are - 11 and 11

- 11 + 11 = 0

- 11 x 11 = - 121

Thus, we have

(a + 11)(a - 11) = 0

a + 11 = 0 or a - 11 = 0

a = - 11 or a = 11

a = - 11, 11

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