Class 10 math Practice Tests

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The e-Book *Discriminant Multiple Choice Questions (MCQ Quiz) with answers*, discriminant MCQs PDF download to study online 10th grade math certificate courses. Practice Roots of Quadratic Equations Multiple Choice Questions and Answers (MCQs), Discriminant quiz answers PDF for distance learning classes. The *Discriminant MCQ* App Download: Free learning app for solution of quadratic equations, discriminant, complex cube roots of unity test prep for online degree programs.

The MCQ *If b² - 4ac < 0, then roots of ax² + bx + c = 0 are*: equal, irrational, rational and imaginary with "Discriminant" App Download (Free) for distance learning classes. Solve roots of quadratic equations quiz questions, download Google eBook (Free Sample) for online classes.

**MCQ 1**: If b² - 4ac < 0, then roots of ax² + bx + c = 0 are

A) equal

B) irrational

C) rational

D) imaginary

d

**MCQ 2**: If b² - 4ac = 0, then roots of ax² + bx + c = 0 are

A) equal

B) imaginary

C) irrational

D) rational

a

**MCQ 3**: If b² - 4ac > 0, and not a perfect square then roots of ax² + bx + c = 0 are

A) imaginary

B) rational

C) equal

D) irrational

d

**MCQ 4**: If b² - 4ac > 0, then roots of ax² + bx + c = 0 are

A) irrational

B) real

C) equal

D) rational

b

**MCQ 5**: Nature of the roots depends on the value of b² - 4ac is known as

A) discriminant

B) square root

C) quadratic formula

D) completing square method

a

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Discriminant MCQs

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