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Given that f (x) = 3x^2 - 36, find x.

A) x = ±2 sqrt 2

B) x = ±2 sqrt 3

C) x = ±3 sqrt 2

D) x = ±3 sqrt 3

Question

Beau Garrison

Mathematics

19 May, 16:34

Will mark as Brainliest.

Given that f (x) = 3x^2 - 36, find x.

A) x = ±2 sqrt 2

B) x = ±2 sqrt 3

C) x = ±3 sqrt 2

D) x = ±3 sqrt 3

+1

Answers (1)

Know the Answer?

Alisha Buchanan · Answer 1

B.

first set it equal to zero:

3x^2-36 = 0

add 36 to both sides:

3x^2=36

divide by 3 to both sides:

x^2=12

take the square root of 12 and you get factors of 2,2, and 3, so you're answer is b.

Will mark as Brainliest.Given that f (x) = 3x^2 - 36, find x.A) x = ±2 sqrt 2B) x = ±2 sqrt 3C) x = ±3 sqrt 2D) x = ±3 sqrt 3

Will mark as Brainliest.

Given that f (x) = 3x^2 - 36, find x.

A) x = ±2 sqrt 2

B) x = ±2 sqrt 3

C) x = ±3 sqrt 2

D) x = ±3 sqrt 3