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45 votes
45 votes
What is the solution set for the quadratic
equatlon x2 - 9 = 0?

User Michael Yadidya
by
3.3k points

2 Answers

20 votes
20 votes

Answer:

x = ± 3

Explanation:

Given

x² - 9 = 0 ( add 9 to both sides )

x² = 9 ( take the square root of both sides )

x = ±
image = ± 3

That is x = - 3 or x = 3

User Jeff Horton
by
2.5k points
24 votes
24 votes

Question:-

What is the solution set for the quadratic equation x² - 9 = 0 ?

Solution:-

x² - 9 = 0 ( Given quadratic equation )

x² = 9

x = ±
image

x = ± 3

The solution set for the quadratic equation x² - 9 = 0 is +3 or -3 [Answer]

User Toldry
by
3.3k points