The cubic equation x3-a x2-b x-8-0 has positive roots- Find the value of b -Statement A - a -6Statement B- a is minimumA- If statement A alone is sufficient- but statement B is notB- If Statement B alone is sufficient but statement A is notC- If Both statements TOGETHER are sufficient- but neither statement ALONE is sufficientD- If Each statement ALONE is sufficientE- Statements A and B TOGETHER are not sufficient

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Sign of Quadratic Expression

The cubic equ...

Question

The cubic equation $x^{3} - a x^{2} + b x - 8 = 0$ has positive roots. Find the value of b?

Statement A: a = 6

Statement B: a is minimum

If statement (A) alone is sufficient, but statement (B) is not

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If Statement (B) alone is sufficient but statement (A) is not

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If Both statements TOGETHER are sufficient, but neither statement ALONE is sufficient

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If Each statement ALONE is sufficient

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Statements (A) and (B) TOGETHER are not sufficient

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Solution

The correct option is D If Each statement ALONE is sufficient
Option D is the correct answer. Check the video for the approach.

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The cubic equation x3−ax2+bx−8=0 has positive roots. Find the value of b? Statement A: a = 6 Statement B: a is minimum

The correct option is D If Each statement ALONE is sufficientOption D is the correct answer. Check the video for the approach.

The cubic equation $x^{3} - a x^{2} + b x - 8 = 0$ has positive roots. Find the value of b?

Statement A: a = 6

Statement B: a is minimum

The correct option is D If Each statement ALONE is sufficient
Option D is the correct answer. Check the video for the approach.