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Which of the following statement is TRUE?

  • a)
    A quadratic equation in variable x is of the form ax2 + bx + c = 0, where a, b, c are real numbers a ≠ o.

  • b)
    If we can factorise ax2 + bx + c, a ≠ 0 into product of two linear factors then roots can be found by equating each factor to zero

  • c)
    A real number R is said to be a root of the quadratic equation ax2 + bx + c = 0 if a(R)2 + bR + c = 0.

  • d)
    All the above

Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Which of the following statement is TRUE?a)A quadratic equation in var...
A quadratic equation in variable x is of the form ax2+ bx + c = 0, where a, b, c are real numbers a ≠ o, because if a=0 then the equation becomes a linear equation.
If we can factorise ax2 + bx + c, a ≠ 0 into product of two linear factors then roots can be found by equating each factor to zero because if two factors are in multiplication and equal to zero then either of the factor is zero.
A real number R is said to be a root of the quadratic equation ax2 + bx + c = 0 if a(R)2 + bR + c = 0. , root means that the value gives answer equal to zero.
So all are correct.
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Community Answer
Which of the following statement is TRUE?a)A quadratic equation in var...
D is right because all options are followed in a quadratic equation and all are true for a quadratic equation...
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