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The equation |x^(2) -x -6|=x+2 has :...

The equation `|x^(2) -x -6|=x+2` has :

A

-2, 1, 4

B

0, 2, 4

C

0, 1, 4

D

-2, 2, 4

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The correct Answer is:
D
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OBJECTIVE RD SHARMA ENGLISH-QUADRATIC EXPRESSIONS AND EQUATIONS -Exercise
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  4. If the equation x^(3) - 3x + a = 0 has distinct roots between 0 and 1,...

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  5. If f(x)=a x^2+b x+c ,g(x)=-a x^2+b x+c ,where ac!=0, then prove that f...

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  6. Prove that equation 2 "cos"^(2) x/2 sin^(2) x=x^(2)+x^(-2), 0 lt x le ...

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  7. Write the number of real roots of the equation (x-1)^2+(x+2)^2+(x-3)^2...

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  10. The value of k for which the equation 3x^(2) + 2x (k^(2) + 1) + k^(2) ...

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  11. If p and q are roots of the quadratic equation x^(2) + mx + m^(2) + a ...

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  12. If one root of the equation ax^2+bx+c=0 is double the other, then the ...

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  13. If e^(cos x) -e^(-cos x) = 4, then the value of cos x, is

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  14. If one root of the polynomial f(x)=5x^2+13 x+k is reciprocal of the ot...

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  15. If bot the roots of lamda(6x^(2)+3)rx+2x^(2)-1=0 and 6 lamda(2x^(2)+1)...

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  16. If x=2+2^(2//3)+2^(1//3) , then the value of x^3-6x^2+6x is

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  18. If the product of the of the equation x^(2) - 3kx + 2e^(2log(e^(k))) =...

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  19. If one root of x^(2) + px+12 = 0 is 4, while the equation x ^(2)...

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  20. if the difference of the roots of the equation x^(2)-px +q=0 is unity...

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