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sukhopar [10]
3 years ago
7

PLEASE HELP!!!! Factor: 9a^2 - 121

Mathematics
2 answers:
bekas [8.4K]3 years ago
7 0

Answer:

\sf\:{9a}^{2}  - 121

\sf\:{(3a)}^{2}  -  {(11)}^{2}

\sf\:(3a + 11)(3a - 11)

saw5 [17]3 years ago
6 0

Answer:

(3a + 11) (3a - 11)

Step-by-step explanation:

:))

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Answer:

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Step-by-step explanation:

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5. Find the discriminant of 15x2 = 4x – 1 and describe
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Answer:

a) The discriminant of the equation =  - 44

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Step-by-step explanation:

Here, the given expression is 15x^{2}  = 4x -1

or, 15x^{2}  -  4x + 1   = 0

Now the discriminant (D) of a quadratic equation ax^{2}  +b x + c   = 0

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Answer:

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