Math, asked by GRSVIS9724, 9 days ago

Factorize the expressions completely.
1. 1-25a⁴.
2. X²-9x+8.
3. X²-9.
4. X²+8x+15.

Answers

Answered by jaswasri2006
0

1 - 25a⁴ can be written as 25a - 1 also.

so,

⇒ 25a⁴ - 1 = 0

⇒ 25a⁴ = 1

⇒ a⁴ = (1/25)

a = (1/25)

 -  -  -  -  -  -  -  -  -  -  -  -

⇒ x² - 9 = 0

⇒ x² = 9

⇒ x = √9

x = ±3

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